def train(opt):
""" dataset preparation """
if not opt.data_filtering_off:
print(
'Filtering the images containing characters which are not in opt.character'
)
print(
'Filtering the images whose label is longer than opt.batch_max_length'
)
# see https://github.com/clovaai/deep-text-recognition-benchmark/blob/6593928855fb7abb999a99f428b3e4477d4ae356/dataset.py#L130
opt.select_data = opt.select_data.split('-')
opt.batch_ratio = opt.batch_ratio.split('-')
train_dataset = Batch_Balanced_Dataset(opt, mode='Train')
log = open(f'./saved_models/{opt.exp_name}/log_dataset.txt', 'a')
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
valid_dataset, valid_dataset_log = hierarchical_dataset(
root=opt.valid_data, opt=opt, mode='Val')
# valid_dataset = RawDataset(root=opt.vAlignCollatealid_data, opt=opt) # use RawDataset
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
# shuffle=True, # 'True' to check training progress with validation function.
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True)
print('-' * 80)
log.write('-' * 80 + '\n')
log.close()
""" model configuration """
if 'CTC' in opt.Prediction:
if opt.baiduCTC:
converter = CTCLabelConverterForBaiduWarpctc(opt.character)
else:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
# weight initialization
for name, param in model.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# data parallel for multi-GPU
model = torch.nn.DataParallel(model).to(device)
model.train()
if opt.saved_model != '':
print(f'loading pretrained model from {opt.saved_model}')
if opt.FT:
model.load_state_dict(torch.load(opt.saved_model), strict=False)
else:
model.load_state_dict(torch.load(opt.saved_model))
print("Model:")
print(model)
""" setup loss """
if 'CTC' in opt.Prediction:
if opt.baiduCTC:
# need to install warpctc. see our guideline.
from warpctc_pytorch import CTCLoss
criterion = CTCLoss()
else:
criterion = torch.nn.CTCLoss(zero_infinity=True).to(device)
else:
criterion = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
# loss averager
loss_avg = Averager()
# filter that only require gradient decent
filtered_parameters = []
params_num = []
for p in filter(lambda p: p.requires_grad, model.parameters()):
filtered_parameters.append(p)
params_num.append(np.prod(p.size()))
print('Trainable params num : ', sum(params_num))
# [print(name, p.numel()) for name, p in filter(lambda p: p[1].requires_grad, model.named_parameters())]
# setup optimizer
if opt.adam:
optimizer = optim.Adam(filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
optimizer = optim.Adadelta(filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("Optimizer:")
print(optimizer)
""" final options """
# print(opt)
with open(f'./saved_models/{opt.exp_name}/opt.txt', 'a') as opt_file:
opt_log = '------------ Options -------------\n'
args = vars(opt)
for k, v in args.items():
opt_log += f'{str(k)}: {str(v)}\n'
opt_log += '---------------------------------------\n'
print(opt_log)
opt_file.write(opt_log)
""" start training """
start_iter = 0
if opt.saved_model != '':
try:
start_iter = int(opt.saved_model.split('_')[-1].split('.')[0])
print(f'continue to train, start_iter: {start_iter}')
except:
pass
start_time = time.time()
best_accuracy = -1
best_norm_ED = -1
iteration = start_iter
start_time = time.time()
while (True):
# train part
image_tensors, labels = train_dataset.get_batch()
image = image_tensors.to(device)
text, length = converter.encode(labels,
batch_max_length=opt.batch_max_length)
batch_size = image.size(0)
if 'CTC' in opt.Prediction:
preds = model(image, text)
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
if opt.baiduCTC:
preds = preds.permute(1, 0, 2) # to use CTCLoss format
cost = criterion(preds, text, preds_size, length) / batch_size
else:
preds = preds.log_softmax(2).permute(1, 0, 2)
cost = criterion(preds, text, preds_size, length)
else:
preds = model(image, text[:, :-1]) # align with Attention.forward
target = text[:, 1:] # without [GO] Symbol
cost = criterion(preds.view(-1, preds.shape[-1]),
target.contiguous().view(-1))
model.zero_grad()
cost.backward()
torch.nn.utils.clip_grad_norm_(
model.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
optimizer.step()
loss_avg.add(cost)
if iteration % 20 == 0:
print(f'#{iteration}: loss:{cost}', flush=True)
# validation part
if (
iteration + 1
) % opt.valInterval == 0 or iteration == 0: # To see training progress, we also conduct validation when 'iteration == 0'
elapsed_time = time.time() - start_time
# for log
with open(f'./saved_models/{opt.exp_name}/log_train.txt',
'a') as log:
model.eval()
with torch.no_grad():
valid_loss, current_accuracy, current_norm_ED, preds, confidence_score, labels, infer_time, length_of_data = validation(
model, criterion, valid_loader, converter, opt)
model.train()
# training loss and validation loss
loss_log = f'[{iteration+1}/{opt.num_iter}] Train loss: {loss_avg.val():0.5f}, Valid loss: {valid_loss:0.5f}, Elapsed_time: {elapsed_time:0.5f}'
loss_avg.reset()
current_model_log = f'{"Current_accuracy":17s}: {current_accuracy:0.3f}, {"Current_norm_ED":17s}: {current_norm_ED:0.2f}'
# keep best accuracy model (on valid dataset)
if current_accuracy > best_accuracy:
best_accuracy = current_accuracy
torch.save(
model.state_dict(),
f'./saved_models/{opt.exp_name}/best_accuracy.pth')
if current_norm_ED > best_norm_ED:
best_norm_ED = current_norm_ED
torch.save(
model.state_dict(),
f'./saved_models/{opt.exp_name}/best_norm_ED.pth')
best_model_log = f'{"Best_accuracy":17s}: {best_accuracy:0.3f}, {"Best_norm_ED":17s}: {best_norm_ED:0.2f}'
loss_model_log = f'{loss_log}\n{current_model_log}\n{best_model_log}'
print(loss_model_log)
log.write(loss_model_log + '\n')
# show some predicted results
dashed_line = '-' * 80
head = f'{"Ground Truth":25s} | {"Prediction":25s} | Confidence Score & T/F'
predicted_result_log = f'{dashed_line}\n{head}\n{dashed_line}\n'
for gt, pred, confidence in zip(labels[:5], preds[:5],
confidence_score[:5]):
if 'Attn' in opt.Prediction:
gt = gt[:gt.find('[s]')]
pred = pred[:pred.find('[s]')]
predicted_result_log += f'{gt:25s} | {pred:25s} | {confidence:0.4f}\t{str(pred == gt)}\n'
predicted_result_log += f'{dashed_line}'
print(predicted_result_log)
log.write(predicted_result_log + '\n')
# save model per 1e+5 iter.
if (iteration + 1) % 1e+5 == 0:
torch.save(
model.state_dict(),
f'./saved_models/{opt.exp_name}/iter_{iteration+1}.pth')
if (iteration + 1) == opt.num_iter:
print('end the training')
sys.exit()
iteration += 1
def train(opt):
""" dataset preparation """
if not opt.data_filtering_off:
print(
'Filtering the images containing characters which are not in opt.character'
)
print(
'Filtering the images whose label is longer than opt.batch_max_length'
)
# see https://github.com/clovaai/deep-text-recognition-benchmark/blob/6593928855fb7abb999a99f428b3e4477d4ae356/dataset.py#L130
opt.select_data = opt.select_data.split('-')
opt.batch_ratio = opt.batch_ratio.split('-')
train_dataset = Batch_Balanced_Dataset(opt)
log = open(f'./saved_models/{opt.experiment_name}/log_dataset.txt', 'a')
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
valid_dataset, valid_dataset_log = hierarchical_dataset(
root=opt.valid_data, opt=opt)
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
shuffle=
True, # 'True' to check training progress with validation function.
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True)
log.write(valid_dataset_log)
print('-' * 80)
log.write('-' * 80 + '\n')
log.close()
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
# weight initialization
for name, param in model.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# data parallel for multi-GPU
model = torch.nn.DataParallel(model).to(device)
model.train()
if opt.saved_model != '':
print(f'loading pretrained model from {opt.saved_model}')
if opt.FT:
model.load_state_dict(torch.load(opt.saved_model), strict=False)
else:
model.load_state_dict(torch.load(opt.saved_model))
print("Model:")
print(model)
""" setup loss """
if 'CTC' in opt.Prediction:
criterion = torch.nn.CTCLoss(zero_infinity=True).to(device)
else:
criterion = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
# loss averager
loss_avg = Averager()
# filter that only require gradient decent
filtered_parameters = []
params_num = []
for p in filter(lambda p: p.requires_grad, model.parameters()):
filtered_parameters.append(p)
params_num.append(np.prod(p.size()))
print('Trainable params num : ', sum(params_num))
# [print(name, p.numel()) for name, p in filter(lambda p: p[1].requires_grad, model.named_parameters())]
# setup optimizer
if opt.adam:
optimizer = optim.Adam(filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
optimizer = optim.Adadelta(filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("Optimizer:")
print(optimizer)
""" final options """
# print(opt)
with open(f'./saved_models/{opt.experiment_name}/opt.txt',
'a') as opt_file:
opt_log = '------------ Options -------------\n'
args = vars(opt)
for k, v in args.items():
opt_log += f'{str(k)}: {str(v)}\n'
opt_log += '---------------------------------------\n'
print(opt_log)
opt_file.write(opt_log)
""" start training """
start_iter = 0
if opt.saved_model != '':
try:
start_iter = int(opt.saved_model.split('_')[-1].split('.')[0])
print(f'continue to train, start_iter: {start_iter}')
except:
pass
start_time = time.time()
best_accuracy = -1
best_norm_ED = -1
best_loss = float("inf")
i = start_iter
if opt.early_stopping_param == 'accuracy':
early_stopping_param = opt.early_stopping_param
elif opt.early_stopping_param == 'loss':
early_stopping_param = opt.early_stopping_param
elif opt.early_stopping_param == 'None':
early_stopping_param = None
else:
raise Exception(
'early_stopping_param is neither accuracy, loss or None')
current_patience = opt.early_stopping_patience
while (True):
# train part
image_tensors, labels = train_dataset.get_batch()
image = image_tensors.to(device)
text, length = converter.encode(labels,
batch_max_length=opt.batch_max_length)
batch_size = image.size(0)
if 'CTC' in opt.Prediction:
preds = model(image, text).log_softmax(2)
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
preds = preds.permute(1, 0, 2)
# (ctc_a) For PyTorch 1.2.0 and 1.3.0. To avoid ctc_loss issue, disabled cudnn for the computation of the ctc_loss
# https://github.com/jpuigcerver/PyLaia/issues/16
torch.backends.cudnn.enabled = False
cost = criterion(preds, text.to(device), preds_size.to(device),
length.to(device))
torch.backends.cudnn.enabled = True
# # (ctc_b) To reproduce our pretrained model / paper, use our previous code (below code) instead of (ctc_a).
# # With PyTorch 1.2.0, the below code occurs NAN, so you may use PyTorch 1.1.0.
# # Thus, the result of CTCLoss is different in PyTorch 1.1.0 and PyTorch 1.2.0.
# # See https://github.com/clovaai/deep-text-recognition-benchmark/issues/56#issuecomment-526490707
# cost = criterion(preds, text, preds_size, length)
else:
preds = model(image, text[:, :-1]) # align with Attention.forward
target = text[:, 1:] # without [GO] Symbol
cost = criterion(preds.view(-1, preds.shape[-1]),
target.contiguous().view(-1))
model.zero_grad()
cost.backward()
torch.nn.utils.clip_grad_norm_(
model.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
optimizer.step()
loss_avg.add(cost)
# validation part
if i > (opt.ignore_x_vals *
opt.valInterval) and i % opt.valInterval == 0:
elapsed_time = time.time() - start_time
# for log
with open(f'./saved_models/{opt.experiment_name}/log_train.txt',
'a') as log:
model.eval()
with torch.no_grad():
valid_loss, current_accuracy, current_norm_ED, preds, confidence_score, labels, infer_time, length_of_data = validation(
model, criterion, valid_loader, converter, opt)
model.train()
# training loss and validation loss
loss_log = f'[{i}/{opt.num_iter}] Train loss: {loss_avg.val():0.5f}, Valid loss: {valid_loss:0.5f}, Elapsed_time: {elapsed_time:0.5f}'
loss_avg.reset()
current_model_log = f'{"Current_accuracy":17s}: {current_accuracy:0.3f}, {"Current_norm_ED":17s}: {current_norm_ED:0.2f}'
# keep best accuracy model (on valid dataset)
if current_accuracy > best_accuracy:
best_accuracy = current_accuracy
torch.save(
model.state_dict(),
f'./saved_models/{opt.experiment_name}/best_accuracy.pth'
)
if early_stopping_param == 'accuracy':
current_patience = opt.early_stopping_patience
elif early_stopping_param == 'accuracy': #if it enters here, it means that the accuracy didn't upgrade
current_patience -= 1
if valid_loss < best_loss:
best_loss = valid_loss
if early_stopping_param == 'loss':
current_patience = opt.early_stopping_patience
elif early_stopping_param == 'loss': #if it enters here, it means that the loss didn't upgrade
current_patience -= 1
if current_norm_ED > best_norm_ED:
best_norm_ED = current_norm_ED
torch.save(
model.state_dict(),
f'./saved_models/{opt.experiment_name}/best_norm_ED.pth'
)
best_model_log = f'{"Best_accuracy":17s}: {best_accuracy:0.3f}, {"Best_norm_ED":17s}: {best_norm_ED:0.2f}'
loss_model_log = f'{loss_log}\n{current_model_log}\n{best_model_log}'
if early_stopping_param is not None:
loss_model_log += f'\n{"Early Stopping Param":17s}: {early_stopping_param}, {"Patience"}: {current_patience}'
print(loss_model_log)
log.write(loss_model_log + '\n')
# show some predicted results
dashed_line = '-' * 80
head = f'{"Ground Truth":25s} | {"Prediction":25s} | Confidence Score & T/F'
predicted_result_log = f'{dashed_line}\n{head}\n{dashed_line}\n'
for gt, pred, confidence in zip(labels[:5], preds[:5],
confidence_score[:5]):
if 'Attn' in opt.Prediction:
gt = gt[:gt.find('[s]')]
pred = pred[:pred.find('[s]')]
predicted_result_log += f'{gt:25s} | {pred:25s} | {confidence:0.4f}\t{str(pred == gt)}\n'
predicted_result_log += f'{dashed_line}'
print(predicted_result_log)
log.write(predicted_result_log + '\n')
if current_patience == 0:
print(
"Stopped the training due to early stopping patience")
sys.exit()
# save model per 1e+5 iter.
if (i + 1) % 1e+5 == 0:
torch.save(model.state_dict(),
f'./saved_models/{opt.experiment_name}/iter_{i+1}.pth')
if i == opt.num_iter:
print('end the training')
sys.exit()
i += 1
def train(opt):
""" training pipeline for our character recognition model """
if not opt.data_filtering_off:
print(
"Filtering the images containing characters which are not in opt.character"
)
print(
"Filtering the images whose label is longer than opt.batch_max_length"
)
opt.select_data = opt.select_data.split("-")
opt.batch_ratio = opt.batch_ratio.split("-")
train_dataset = Batch_Balanced_Dataset(opt)
# Logging the experiment, so that we can refer to the performance of previous runs
log = open(f"./saved_models/{opt.exp_name}/log_dataset.txt", "a")
# Using params from user input to collation function for dataloader
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
# Defining our validation dataloader
valid_dataset, valid_dataset_log = hierarchical_dataset(
root=opt.valid_data, opt=opt)
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
shuffle=
True, # 'True' to check training progress with validation function.
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True,
)
log.write(valid_dataset_log)
print("-" * 80)
log.write("-" * 80 + "\n")
log.close()
# Using either CTC or Attention for char predictions
if "CTC" in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
# Runnning our OCR model in grayscale or RGB
if opt.rgb:
opt.input_channel = 3
# Defining our model using user inputs
model = Model(opt)
print(
"model input parameters",
opt.imgH,
opt.imgW,
opt.num_fiducial,
opt.input_channel,
opt.output_channel,
opt.hidden_size,
opt.num_class,
opt.batch_max_length,
opt.Transformation,
opt.FeatureExtraction,
opt.SequenceModeling,
opt.Prediction,
)
# weight initialization
for name, param in model.named_parameters():
if "localization_fc2" in name:
print(f"Skip {name} as it is already initialized")
continue
try:
if "bias" in name:
init.constant_(param, 0.0)
elif "weight" in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if "weight" in name:
param.data.fill_(1)
continue
# Putting model in training mode
model.train()
# Using finetuning saved model from previous runs
if opt.saved_model != "":
print(f"loading pretrained model from {opt.saved_model}")
if opt.FT:
model.load_state_dict(torch.load(opt.saved_model), strict=False)
else:
model.load_state_dict(torch.load(opt.saved_model))
print("Model:")
# print(model)
# Sending model to cpu or gpu, depending upon the avialbility
model.to(device)
# Setting up loss functions in the case of either CTC or Attention
if "CTC" in opt.Prediction:
criterion = torch.nn.CTCLoss(zero_infinity=True).to(device)
else:
criterion = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
# loss averager
loss_avg = Averager()
# filter that only require gradient decent
filtered_parameters = []
params_num = []
for p in filter(lambda p: p.requires_grad, model.parameters()):
filtered_parameters.append(p)
params_num.append(np.prod(p.size()))
print("Trainable params num : ", sum(params_num))
# [print(name, p.numel()) for name, p in filter(lambda p: p[1].requires_grad, model.named_parameters())]
# Setup of optimizer to be used
if opt.adam:
optimizer = optim.Adam(filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
optimizer = optim.Adadelta(filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("Optimizer:")
print(optimizer)
# print(opt)
with open(f"./saved_models/{opt.exp_name}/opt.txt", "a") as opt_file:
opt_log = "------------ Options -------------\n"
args = vars(opt)
for k, v in args.items():
opt_log += f"{str(k)}: {str(v)}\n"
opt_log += "---------------------------------------\n"
print(opt_log)
opt_file.write(opt_log)
# Training iteration starts here
start_iter = 0
if opt.saved_model != "":
try:
start_iter = int(opt.saved_model.split("_")[-1].split(".")[0])
print(f"continue to train, start_iter: {start_iter}")
except:
pass
# Setting up initial metrics results and initializing the timer
start_time = time.time()
best_accuracy = -1
best_norm_ED = -1
iteration = start_iter
while True:
# train part
image_tensors, labels = train_dataset.get_batch()
image = image_tensors.to(device)
text, length = converter.encode(labels,
batch_max_length=opt.batch_max_length)
batch_size = image.size(0)
if "CTC" in opt.Prediction:
preds = model(image, text)
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
preds = preds.log_softmax(2).permute(1, 0, 2)
cost = criterion(preds, text, preds_size, length)
else:
preds = model(image, text[:, :-1]) # align with Attention.forward
target = text[:, 1:] # without [GO] Symbol
cost = criterion(preds.view(-1, preds.shape[-1]),
target.contiguous().view(-1))
model.zero_grad()
cost.backward()
torch.nn.utils.clip_grad_norm_(
model.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
optimizer.step()
loss_avg.add(cost)
# validation part
if (
iteration + 1
) % opt.valInterval == 0 or iteration == 0: # To see training progress, we also conduct validation when 'iteration == 0'
elapsed_time = time.time() - start_time
# for log
with open(f"./saved_models/{opt.exp_name}/log_train.txt",
"a") as log:
model.eval()
with torch.no_grad():
(
valid_loss,
current_accuracy,
current_norm_ED,
preds,
confidence_score,
labels,
infer_time,
length_of_data,
) = validation(model, criterion, valid_loader, converter,
opt)
model.train()
# training loss and validation loss
loss_log = f"[{iteration+1}/{opt.num_iter}] Train loss: {loss_avg.val():0.5f}, Valid loss: {valid_loss:0.5f}, Elapsed_time: {elapsed_time:0.5f}"
loss_avg.reset()
current_model_log = f'{"Current_accuracy":17s}: {current_accuracy:0.3f}, {"Current_norm_ED":17s}: {current_norm_ED:0.2f}'
# keep best accuracy model (on valid dataset)
if current_accuracy > best_accuracy:
best_accuracy = current_accuracy
torch.save(
model.state_dict(),
f"./saved_models/{opt.exp_name}/best_accuracy.pth",
)
if current_norm_ED > best_norm_ED:
best_norm_ED = current_norm_ED
torch.save(
model.state_dict(),
f"./saved_models/{opt.exp_name}/best_norm_ED.pth",
)
best_model_log = f'{"Best_accuracy":17s}: {best_accuracy:0.3f}, {"Best_norm_ED":17s}: {best_norm_ED:0.2f}'
loss_model_log = f"{loss_log}\n{current_model_log}\n{best_model_log}"
print(loss_model_log)
log.write(loss_model_log + "\n")
# show some predicted results
dashed_line = "-" * 80
head = f'{"Ground Truth":25s} | {"Prediction":25s} | Confidence Score & T/F'
predicted_result_log = f"{dashed_line}\n{head}\n{dashed_line}\n"
for gt, pred, confidence in zip(labels[:5], preds[:5],
confidence_score[:5]):
if "Attn" in opt.Prediction:
gt = gt[:gt.find("[s]")]
pred = pred[:pred.find("[s]")]
predicted_result_log += f"{gt:25s} | {pred:25s} | {confidence:0.4f}\t{str(pred == gt)}\n"
predicted_result_log += f"{dashed_line}"
print(predicted_result_log)
log.write(predicted_result_log + "\n")
# save model per 1e+5 iter.
if (iteration + 1) % 1e5 == 0:
torch.save(
model.state_dict(),
f"./saved_models/{opt.exp_name}/iter_{iteration+1}.pth",
)
if (iteration + 1) == opt.num_iter:
print("end the training")
sys.exit()
iteration += 1
def benchmark_all_eval(model,
criterion,
converter,
opt,
calculate_infer_time=False):
""" evaluation with 10 benchmark evaluation datasets """
# The evaluation datasets, dataset order is same with Table 1 in our paper.
eval_data_list = [
'IIIT5k_3000', 'SVT', 'IC03_860', 'IC03_867', 'IC13_857', 'IC13_1015',
'IC15_1811', 'IC15_2077', 'SVTP', 'CUTE80'
]
# # To easily compute the total accuracy of our paper.
# eval_data_list = ['IIIT5k_3000', 'SVT', 'IC03_867',
# 'IC13_1015', 'IC15_2077', 'SVTP', 'CUTE80']
if calculate_infer_time:
evaluation_batch_size = 1 # batch_size should be 1 to calculate the GPU inference time per image.
else:
evaluation_batch_size = opt.batch_size
list_accuracy = []
total_forward_time = 0
total_evaluation_data_number = 0
total_correct_number = 0
log = open(f'./result/{opt.exp_name}/log_all_evaluation.txt', 'a')
dashed_line = '-' * 80
print(dashed_line)
log.write(dashed_line + '\n')
for eval_data in eval_data_list:
eval_data_path = os.path.join(opt.eval_data, eval_data)
AlignCollate_evaluation = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
eval_data, eval_data_log = hierarchical_dataset(root=eval_data_path,
opt=opt)
evaluation_loader = torch.utils.data.DataLoader(
eval_data,
batch_size=evaluation_batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_evaluation,
pin_memory=True)
_, accuracy_by_best_model, norm_ED_by_best_model, _, _, _, infer_time, length_of_data = validation(
model, criterion, evaluation_loader, converter, opt)
list_accuracy.append(f'{accuracy_by_best_model:0.3f}')
total_forward_time += infer_time
total_evaluation_data_number += len(eval_data)
total_correct_number += accuracy_by_best_model * length_of_data
log.write(eval_data_log)
print(
f'Acc {accuracy_by_best_model:0.3f}\t normalized_ED {norm_ED_by_best_model:0.3f}'
)
log.write(
f'Acc {accuracy_by_best_model:0.3f}\t normalized_ED {norm_ED_by_best_model:0.3f}\n'
)
print(dashed_line)
log.write(dashed_line + '\n')
averaged_forward_time = total_forward_time / total_evaluation_data_number * 1000
total_accuracy = total_correct_number / total_evaluation_data_number
params_num = sum([np.prod(p.size()) for p in model.parameters()])
evaluation_log = 'accuracy: '
for name, accuracy in zip(eval_data_list, list_accuracy):
evaluation_log += f'{name}: {accuracy}\t'
evaluation_log += f'total_accuracy: {total_accuracy:0.3f}\t'
evaluation_log += f'averaged_infer_time: {averaged_forward_time:0.3f}\t# parameters: {params_num/1e6:0.3f}'
print(evaluation_log)
log.write(evaluation_log + '\n')
log.close()
return None
def detect_ocr(config, image, timestamp, save_img):
detection_list, img, boxes = Detection_txt(config, image, config.net)
# print(detection_list)
t = time.time()
device = config.device
model = config.model
converter = config.converter
# 32 * 100
AlignCollate_demo = AlignCollate(imgH=config.imgH,
imgW=config.imgW,
keep_ratio_with_pad=config.PAD)
# demo_data = RawDataset(root=image, opt=config) # use RawDataset
demo_data = RawDataset_wPosition(root=detection_list,
opt=config) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=config.batch_size,
shuffle=False,
num_workers=int(config.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
#(< PIL.Image.Image image mode=L size=398x120 at 0x7F376DAF30B8 >, './demo_image/demo_12.png')
# predict
model.eval()
with torch.no_grad():
log = open(f'{config.logfilepath}', 'a')
dashed_line = '-' * 80
head = f'{"coordinates":25s}\t{"predicted_labels":25s}\tconfidence score'
if save_img: print(f'{dashed_line}\n{head}\n{dashed_line}')
log.write(f'{dashed_line}\n{head}\n{dashed_line}\n')
pred_list = []
new_boxes = []
for image_tensors, coordinate_list in demo_loader:
batch_size = image_tensors.size(0)
# print(image_tensors.shape)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([config.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(
batch_size, config.batch_max_length + 1).fill_(0).to(device)
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for coordinate, pred, pred_max_prob in zip(coordinate_list,
preds_str,
preds_max_prob):
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
if pred_EOS == 0: confidence_score = 0.0
else:
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1].item()
coordinate = list(coordinate)
pred_list.append([coordinate, pred, confidence_score])
if save_img:
print(f'{coordinate}\t{pred:25s}\t{confidence_score:0.4f}')
log.write(
f'{coordinate}\t{pred:25s}\t{confidence_score:0.4f}\n')
log.close()
recog_time = time.time() - t
config.recog_time = config.recog_time + recog_time
# print("\nrun time (recognition) : {:.2f} , {:.2f} s".format(recog_time,config.recog_time))
if save_img:
saveResult(img, boxes, pred_list, config.result_folder,
config.res_imagefileName)
return pred_list, timestamp
def test(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
# model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
opt.experiment_name = '_'.join(opt.saved_model.split('/')[1:])
# print(model)
if opt.continue_model != '':
print(f'loading pretrained model from {opt.continue_model}')
model.load_state_dict(torch.load(opt.continue_model))
""" keep evaluation model and result logs """
os.makedirs(f'./result/{opt.experiment_name}', exist_ok=True)
os.system(f'cp {opt.saved_model} ./result/{opt.experiment_name}/')
""" setup loss """
if 'CTC' in opt.Prediction:
criterion = torch.nn.CTCLoss(zero_infinity=True).to(device)
else:
criterion = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
""" evaluation """
model.eval()
with torch.no_grad():
if opt.benchmark_all_eval: # evaluation with 10 benchmark evaluation datasets
benchmark_all_eval(model, criterion, converter, opt)
else:
log = open(f'./result/{opt.experiment_name}/log_evaluation.txt',
'a')
AlignCollate_evaluation = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
eval_data, eval_data_log = hierarchical_dataset(root=opt.eval_data,
opt=opt)
evaluation_loader = torch.utils.data.DataLoader(
eval_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_evaluation,
pin_memory=True)
_, accuracy_by_best_model, _, _, _, _, _, _ = validation(
model, criterion, evaluation_loader, converter, opt)
log.write(eval_data_log)
print(f'{accuracy_by_best_model:0.3f}')
log.write(f'{accuracy_by_best_model:0.3f}\n')
log.close()
def demo(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred).log_softmax(2)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.permute(1, 0, 2).max(2)
preds_index = preds_index.transpose(1, 0).contiguous().view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
print('-' * 80)
print('image_path\tpredicted_labels')
print('-' * 80)
temp = []
for img_name, pred in zip(image_path_list, preds_str):
if 'Attn' in opt.Prediction:
pred = pred[:pred.find(
'[s]')] # prune after "end of sentence" token ([s])
temp.append(pred)
print(f'{img_name}\t{pred}')
return temp
def _textRecognition(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
char_list = "abcdefghijklmnopqrstuvwxyzABCDEFGHIJKLMNOPQRSTUVWXYZ0123456789"
csv_filename = os.path.join(opt.output_dirpath, "text_information.csv")
Header = ["bookID", "prediction"]
with open(csv_filename, 'w') as f:
writer = csv.DictWriter(f, fieldnames=Header)
writer.writeheader()
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(
batch_size, opt.batch_max_length + 1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index.data,
preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
#log = open(f'./text_information.csv', 'a')
dashed_line = '-' * 80
head = f'{"image_path":25s}\t{"predicted_labels":25s}\tconfidence score'
print(f'{dashed_line}\n{head}\n{dashed_line}')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(
image_path_list, preds_str, preds_max_prob):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
#print("{}:{}".format(pred_max_prob,len(pred_max_prob)))
try:
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
except:
deleteImageAndText(opt.book_img_dirpath, img_name)
continue
#confidence_score = pred_max_prob.cumprod(dim=0)[-1]
pred = pred[0]
if confidence_score < 0.5:
pred = "Unreadble"
deleteImageAndText(opt.book_img_dirpath, img_name)
continue
elif not (pred in char_list):
pred = "Undefined"
# extract the name part of the image
filename = os.path.basename(img_name)
print(
f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}')
writer.writerow({"bookID": filename, "prediction": pred})
def demo(opt):
inputimage = opt.input_image
boxesscv = opt.boxescsv
bboxes = parse_csv(inputimage, boxesscv)
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
# preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index, preds_size)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
log = open(f'{opt.output_folder}result.csv', 'w')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_index, (pred, pred_max_prob) in enumerate(
zip(preds_str, preds_max_prob)):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
for pts in bboxes[img_index]:
x, y = pts
log.write(f'{x},{y},')
log.write(f'{pred}\n')
log.close()
# copy log to local output folder
os.system(f'cp {opt.output_folder}result.csv /input/output')
shutil.make_archive('per_word_visual', 'zip', '/input/output')
def demo(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial, opt.input_channel, opt.output_channel,
opt.hidden_size, opt.num_class, opt.batch_max_length, opt.Transformation, opt.FeatureExtraction,
opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH, imgW=opt.imgW, keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(
demo_data, batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo, pin_memory=True)
# predict
acc = 0;avgconf = [0.0, 0.0] # correct, wrong
sample_num =0
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] * batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length + 1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
log = open(f'./log_demo_result.txt', 'a')
dashed_line = '-' * 80
head = f'{"image_path":25s}\t{"predicted_labels":25s}\tconfidence score'
print(f'{dashed_line}\n{head}\n{dashed_line}')
log.write(f'{dashed_line}\n{head}\n{dashed_line}\n')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(image_path_list, preds_str, preds_max_prob):
try:
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
print(f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}')
log.write(f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}\n')
if os.path.split(img_name)[-1].split("_")[0]==pred:
acc+=1.0
avgconf[0]+=confidence_score
else:
avgconf[1] += confidence_score
except:
avgconf[1] += confidence_score
print("!!!!!",img_name)
log.close()
sample_num+=len(image_path_list)
acc/=sample_num
avgconf[0]/=sample_num
avgconf[1]/=sample_num
print(f"Sample num:{sample_num}\nAccuracy:{acc}\nCorrect samples Average Confidence:{avgconf[0]}\nWrong samples Average Confidence:{avgconf[1]}")
def train(opt):
plotDir = os.path.join(opt.exp_dir, opt.exp_name, 'plots')
if not os.path.exists(plotDir):
os.makedirs(plotDir)
lib.print_model_settings(locals().copy())
""" dataset preparation """
if not opt.data_filtering_off:
print(
'Filtering the images containing characters which are not in opt.character'
)
print(
'Filtering the images whose label is longer than opt.batch_max_length'
)
# see https://github.com/clovaai/deep-text-recognition-benchmark/blob/6593928855fb7abb999a99f428b3e4477d4ae356/dataset.py#L130
opt.select_data = opt.select_data.split('-')
opt.batch_ratio = opt.batch_ratio.split('-')
#considering the real images for discriminator
opt.batch_size = opt.batch_size * 2
train_dataset = Batch_Balanced_Dataset(opt)
log = open(os.path.join(opt.exp_dir, opt.exp_name, 'log_dataset.txt'), 'a')
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
valid_dataset, valid_dataset_log = hierarchical_dataset(
root=opt.valid_data, opt=opt)
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
shuffle=
False, # 'True' to check training progress with validation function.
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True)
log.write(valid_dataset_log)
print('-' * 80)
log.write('-' * 80 + '\n')
log.close()
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = AdaINGenV4(opt)
ocrModel = Model(opt)
disModel = MsImageDisV1(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
# weight initialization
for currModel in [model, ocrModel, disModel]:
for name, param in currModel.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# data parallel for multi-GPU
ocrModel = torch.nn.DataParallel(ocrModel).to(device)
if not opt.ocrFixed:
ocrModel.train()
else:
ocrModel.module.Transformation.eval()
ocrModel.module.FeatureExtraction.eval()
ocrModel.module.AdaptiveAvgPool.eval()
# ocrModel.module.SequenceModeling.eval()
ocrModel.module.Prediction.eval()
model = torch.nn.DataParallel(model).to(device)
model.train()
disModel = torch.nn.DataParallel(disModel).to(device)
disModel.train()
if opt.modelFolderFlag:
if len(
glob.glob(
os.path.join(opt.exp_dir, opt.exp_name,
"iter_*_synth.pth"))) > 0:
opt.saved_synth_model = glob.glob(
os.path.join(opt.exp_dir, opt.exp_name,
"iter_*_synth.pth"))[-1]
if len(
glob.glob(
os.path.join(opt.exp_dir, opt.exp_name,
"iter_*_dis.pth"))) > 0:
opt.saved_dis_model = glob.glob(
os.path.join(opt.exp_dir, opt.exp_name, "iter_*_dis.pth"))[-1]
#loading pre-trained model
if opt.saved_ocr_model != '' and opt.saved_ocr_model != 'None':
print(f'loading pretrained ocr model from {opt.saved_ocr_model}')
if opt.FT:
ocrModel.load_state_dict(torch.load(opt.saved_ocr_model),
strict=False)
else:
ocrModel.load_state_dict(torch.load(opt.saved_ocr_model))
print("OCRModel:")
print(ocrModel)
if opt.saved_synth_model != '' and opt.saved_synth_model != 'None':
print(f'loading pretrained synth model from {opt.saved_synth_model}')
if opt.FT:
model.load_state_dict(torch.load(opt.saved_synth_model),
strict=False)
else:
model.load_state_dict(torch.load(opt.saved_synth_model))
print("SynthModel:")
print(model)
if opt.saved_dis_model != '' and opt.saved_dis_model != 'None':
print(
f'loading pretrained discriminator model from {opt.saved_dis_model}'
)
if opt.FT:
disModel.load_state_dict(torch.load(opt.saved_dis_model),
strict=False)
else:
disModel.load_state_dict(torch.load(opt.saved_dis_model))
print("DisModel:")
print(disModel)
""" setup loss """
if 'CTC' in opt.Prediction:
ocrCriterion = torch.nn.CTCLoss(zero_infinity=True).to(device)
else:
ocrCriterion = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
recCriterion = torch.nn.L1Loss()
styleRecCriterion = torch.nn.L1Loss()
# loss averager
loss_avg_ocr = Averager()
loss_avg = Averager()
loss_avg_dis = Averager()
loss_avg_ocrRecon_1 = Averager()
loss_avg_ocrRecon_2 = Averager()
loss_avg_gen = Averager()
loss_avg_imgRecon = Averager()
loss_avg_styRecon = Averager()
##---------------------------------------##
# filter that only require gradient decent
filtered_parameters = []
params_num = []
for p in filter(lambda p: p.requires_grad, model.parameters()):
filtered_parameters.append(p)
params_num.append(np.prod(p.size()))
print('Trainable params num : ', sum(params_num))
# [print(name, p.numel()) for name, p in filter(lambda p: p[1].requires_grad, model.named_parameters())]
# setup optimizer
if opt.optim == 'adam':
optimizer = optim.Adam(filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, opt.beta2),
weight_decay=opt.weight_decay)
else:
optimizer = optim.Adadelta(filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps,
weight_decay=opt.weight_decay)
print("SynthOptimizer:")
print(optimizer)
#filter parameters for OCR training
ocr_filtered_parameters = []
ocr_params_num = []
for p in filter(lambda p: p.requires_grad, ocrModel.parameters()):
ocr_filtered_parameters.append(p)
ocr_params_num.append(np.prod(p.size()))
print('OCR Trainable params num : ', sum(ocr_params_num))
# setup optimizer
if opt.optim == 'adam':
ocr_optimizer = optim.Adam(ocr_filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, opt.beta2),
weight_decay=opt.weight_decay)
else:
ocr_optimizer = optim.Adadelta(ocr_filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps,
weight_decay=opt.weight_decay)
print("OCROptimizer:")
print(ocr_optimizer)
#filter parameters for OCR training
dis_filtered_parameters = []
dis_params_num = []
for p in filter(lambda p: p.requires_grad, disModel.parameters()):
dis_filtered_parameters.append(p)
dis_params_num.append(np.prod(p.size()))
print('Dis Trainable params num : ', sum(dis_params_num))
# setup optimizer
if opt.optim == 'adam':
dis_optimizer = optim.Adam(dis_filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, opt.beta2),
weight_decay=opt.weight_decay)
else:
dis_optimizer = optim.Adadelta(dis_filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps,
weight_decay=opt.weight_decay)
print("DisOptimizer:")
print(dis_optimizer)
##---------------------------------------##
""" final options """
with open(os.path.join(opt.exp_dir, opt.exp_name, 'opt.txt'),
'a') as opt_file:
opt_log = '------------ Options -------------\n'
args = vars(opt)
for k, v in args.items():
opt_log += f'{str(k)}: {str(v)}\n'
opt_log += '---------------------------------------\n'
print(opt_log)
opt_file.write(opt_log)
""" start training """
start_iter = 0
if opt.saved_synth_model != '' and opt.saved_synth_model != 'None':
try:
start_iter = int(
opt.saved_synth_model.split('_')[-2].split('.')[0])
print(f'continue to train, start_iter: {start_iter}')
except:
pass
#get schedulers
scheduler = get_scheduler(optimizer, opt)
ocr_scheduler = get_scheduler(ocr_optimizer, opt)
dis_scheduler = get_scheduler(dis_optimizer, opt)
start_time = time.time()
best_accuracy = -1
best_norm_ED = -1
best_accuracy_ocr = -1
best_norm_ED_ocr = -1
iteration = start_iter
cntr = 0
while (True):
# train part
if opt.lr_policy != "None":
scheduler.step()
ocr_scheduler.step()
dis_scheduler.step()
image_tensors_all, labels_1_all, labels_2_all = train_dataset.get_batch(
)
# ## comment
# pdb.set_trace()
# for imgCntr in range(image_tensors.shape[0]):
# save_image(tensor2im(image_tensors[imgCntr]),'temp/'+str(imgCntr)+'.png')
# pdb.set_trace()
# ###
# print(cntr)
cntr += 1
disCnt = int(image_tensors_all.size(0) / 2)
image_tensors, image_tensors_real, labels_gt, labels_2 = image_tensors_all[:disCnt], image_tensors_all[
disCnt:disCnt +
disCnt], labels_1_all[:disCnt], labels_2_all[:disCnt]
image = image_tensors.to(device)
image_real = image_tensors_real.to(device)
batch_size = image.size(0)
##-----------------------------------##
#generate text(labels) from ocr.forward
if opt.ocrFixed:
# ocrModel.eval()
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = ocrModel(image, text_for_pred)
preds = preds[:, :text_for_loss.shape[1] - 1, :]
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
labels_1 = converter.decode(preds_index.data, preds_size.data)
else:
preds = ocrModel(image, text_for_pred, is_train=False)
_, preds_index = preds.max(2)
labels_1 = converter.decode(preds_index, length_for_pred)
for idx, pred in enumerate(labels_1):
pred_EOS = pred.find('[s]')
labels_1[
idx] = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
# ocrModel.train()
else:
labels_1 = labels_gt
##-----------------------------------##
text_1, length_1 = converter.encode(
labels_1, batch_max_length=opt.batch_max_length)
text_2, length_2 = converter.encode(
labels_2, batch_max_length=opt.batch_max_length)
#forward pass from style and word generator
images_recon_1, images_recon_2, style = model(image, text_1, text_2)
if 'CTC' in opt.Prediction:
if not opt.ocrFixed:
#ocr training with orig image
preds_ocr = ocrModel(image, text_1)
preds_size_ocr = torch.IntTensor([preds_ocr.size(1)] *
batch_size)
preds_ocr = preds_ocr.log_softmax(2).permute(1, 0, 2)
ocrCost_train = ocrCriterion(preds_ocr, text_1, preds_size_ocr,
length_1)
#content loss for reconstructed images
preds_1 = ocrModel(images_recon_1, text_1)
preds_size_1 = torch.IntTensor([preds_1.size(1)] * batch_size)
preds_1 = preds_1.log_softmax(2).permute(1, 0, 2)
preds_2 = ocrModel(images_recon_2, text_2)
preds_size_2 = torch.IntTensor([preds_2.size(1)] * batch_size)
preds_2 = preds_2.log_softmax(2).permute(1, 0, 2)
ocrCost_1 = ocrCriterion(preds_1, text_1, preds_size_1, length_1)
ocrCost_2 = ocrCriterion(preds_2, text_2, preds_size_2, length_2)
# ocrCost = 0.5*( ocrCost_1 + ocrCost_2 )
else:
if not opt.ocrFixed:
#ocr training with orig image
preds_ocr = ocrModel(
image, text_1[:, :-1]) # align with Attention.forward
target_ocr = text_1[:, 1:] # without [GO] Symbol
ocrCost_train = ocrCriterion(
preds_ocr.view(-1, preds_ocr.shape[-1]),
target_ocr.contiguous().view(-1))
#content loss for reconstructed images
preds_1 = ocrModel(images_recon_1, text_1[:, :-1],
is_train=False) # align with Attention.forward
target_1 = text_1[:, 1:] # without [GO] Symbol
preds_2 = ocrModel(images_recon_2, text_2[:, :-1],
is_train=False) # align with Attention.forward
target_2 = text_2[:, 1:] # without [GO] Symbol
ocrCost_1 = ocrCriterion(preds_1.view(-1, preds_1.shape[-1]),
target_1.contiguous().view(-1))
ocrCost_2 = ocrCriterion(preds_2.view(-1, preds_2.shape[-1]),
target_2.contiguous().view(-1))
# ocrCost = 0.5*(ocrCost_1+ocrCost_2)
if not opt.ocrFixed:
#training OCR
ocrModel.zero_grad()
ocrCost_train.backward()
# torch.nn.utils.clip_grad_norm_(ocrModel.parameters(), opt.grad_clip) # gradient clipping with 5 (Default)
ocr_optimizer.step()
#if ocr is fixed; ignore this loss
loss_avg_ocr.add(ocrCost_train)
else:
loss_avg_ocr.add(torch.tensor(0.0))
#Domain discriminator: Dis update
disModel.zero_grad()
disCost = opt.disWeight * 0.5 * (
disModel.module.calc_dis_loss(images_recon_1.detach(), image_real)
+ disModel.module.calc_dis_loss(images_recon_2.detach(), image))
disCost.backward()
# torch.nn.utils.clip_grad_norm_(disModel.parameters(), opt.grad_clip) # gradient clipping with 5 (Default)
dis_optimizer.step()
loss_avg_dis.add(disCost)
# #[Style Encoder] + [Word Generator] update
#Adversarial loss
disGenCost = 0.5 * (disModel.module.calc_gen_loss(images_recon_1) +
disModel.module.calc_gen_loss(images_recon_2))
#Input reconstruction loss
recCost = recCriterion(images_recon_1, image)
#Pair style reconstruction loss
if opt.styleReconWeight == 0.0:
styleRecCost = torch.tensor(0.0)
else:
if opt.styleDetach:
styleRecCost = styleRecCriterion(
model(images_recon_2, None, None, styleFlag=True),
style.detach())
else:
styleRecCost = styleRecCriterion(
model(images_recon_2, None, None, styleFlag=True), style)
#OCR Content cost
ocrCost = 0.5 * (ocrCost_1 + ocrCost_2)
cost = opt.ocrWeight * ocrCost + opt.reconWeight * recCost + opt.disWeight * disGenCost + opt.styleReconWeight * styleRecCost
model.zero_grad()
ocrModel.zero_grad()
disModel.zero_grad()
cost.backward()
# torch.nn.utils.clip_grad_norm_(model.parameters(), opt.grad_clip) # gradient clipping with 5 (Default)
optimizer.step()
loss_avg.add(cost)
#Individual losses
loss_avg_ocrRecon_1.add(opt.ocrWeight * 0.5 * ocrCost_1)
loss_avg_ocrRecon_2.add(opt.ocrWeight * 0.5 * ocrCost_2)
loss_avg_gen.add(opt.disWeight * disGenCost)
loss_avg_imgRecon.add(opt.reconWeight * recCost)
loss_avg_styRecon.add(opt.styleReconWeight * styleRecCost)
# validation part
if (
iteration + 1
) % opt.valInterval == 0 or iteration == 0: # To see training progress, we also conduct validation when 'iteration == 0'
#Save training images
os.makedirs(os.path.join(opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration)),
exist_ok=True)
for trImgCntr in range(batch_size):
try:
save_image(
tensor2im(image[trImgCntr].detach()),
os.path.join(
opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration),
str(trImgCntr) + '_input_' + labels_gt[trImgCntr] +
'.png'))
save_image(
tensor2im(images_recon_1[trImgCntr].detach()),
os.path.join(
opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration),
str(trImgCntr) + '_recon_' + labels_1[trImgCntr] +
'.png'))
save_image(
tensor2im(images_recon_2[trImgCntr].detach()),
os.path.join(
opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration),
str(trImgCntr) + '_pair_' + labels_2[trImgCntr] +
'.png'))
except:
print('Warning while saving training image')
elapsed_time = time.time() - start_time
# for log
with open(os.path.join(opt.exp_dir, opt.exp_name, 'log_train.txt'),
'a') as log:
model.eval()
ocrModel.module.Transformation.eval()
ocrModel.module.FeatureExtraction.eval()
ocrModel.module.AdaptiveAvgPool.eval()
ocrModel.module.SequenceModeling.eval()
ocrModel.module.Prediction.eval()
disModel.eval()
with torch.no_grad():
valid_loss, current_accuracy, current_norm_ED, preds, confidence_score, labels, infer_time, length_of_data = validation_synth_lrw_res(
iteration, model, ocrModel, disModel, recCriterion,
styleRecCriterion, ocrCriterion, valid_loader,
converter, opt)
model.train()
if not opt.ocrFixed:
ocrModel.train()
else:
# ocrModel.module.Transformation.eval()
# ocrModel.module.FeatureExtraction.eval()
# ocrModel.module.AdaptiveAvgPool.eval()
ocrModel.module.SequenceModeling.train()
# ocrModel.module.Prediction.eval()
disModel.train()
# training loss and validation loss
loss_log = f'[{iteration+1}/{opt.num_iter}] Train OCR loss: {loss_avg_ocr.val():0.5f}, Train Synth loss: {loss_avg.val():0.5f}, Train Dis loss: {loss_avg_dis.val():0.5f}, Valid OCR loss: {valid_loss[0]:0.5f}, Valid Synth loss: {valid_loss[1]:0.5f}, Valid Dis loss: {valid_loss[2]:0.5f}, Elapsed_time: {elapsed_time:0.5f}'
current_model_log_ocr = f'{"Current_accuracy_OCR":17s}: {current_accuracy[0]:0.3f}, {"Current_norm_ED_OCR":17s}: {current_norm_ED[0]:0.2f}'
current_model_log_1 = f'{"Current_accuracy_recon":17s}: {current_accuracy[1]:0.3f}, {"Current_norm_ED_recon":17s}: {current_norm_ED[1]:0.2f}'
current_model_log_2 = f'{"Current_accuracy_pair":17s}: {current_accuracy[2]:0.3f}, {"Current_norm_ED_pair":17s}: {current_norm_ED[2]:0.2f}'
#plotting
lib.plot.plot(os.path.join(plotDir, 'Train-OCR-Loss'),
loss_avg_ocr.val().item())
lib.plot.plot(os.path.join(plotDir, 'Train-Synth-Loss'),
loss_avg.val().item())
lib.plot.plot(os.path.join(plotDir, 'Train-Dis-Loss'),
loss_avg_dis.val().item())
lib.plot.plot(os.path.join(plotDir, 'Train-OCR-Recon1-Loss'),
loss_avg_ocrRecon_1.val().item())
lib.plot.plot(os.path.join(plotDir, 'Train-OCR-Recon2-Loss'),
loss_avg_ocrRecon_2.val().item())
lib.plot.plot(os.path.join(plotDir, 'Train-Gen-Loss'),
loss_avg_gen.val().item())
lib.plot.plot(os.path.join(plotDir, 'Train-ImgRecon1-Loss'),
loss_avg_imgRecon.val().item())
lib.plot.plot(os.path.join(plotDir, 'Train-StyRecon2-Loss'),
loss_avg_styRecon.val().item())
lib.plot.plot(os.path.join(plotDir, 'Valid-OCR-Loss'),
valid_loss[0].item())
lib.plot.plot(os.path.join(plotDir, 'Valid-Synth-Loss'),
valid_loss[1].item())
lib.plot.plot(os.path.join(plotDir, 'Valid-Dis-Loss'),
valid_loss[2].item())
lib.plot.plot(os.path.join(plotDir, 'Valid-OCR-Recon1-Loss'),
valid_loss[3].item())
lib.plot.plot(os.path.join(plotDir, 'Valid-OCR-Recon2-Loss'),
valid_loss[4].item())
lib.plot.plot(os.path.join(plotDir, 'Valid-Gen-Loss'),
valid_loss[5].item())
lib.plot.plot(os.path.join(plotDir, 'Valid-ImgRecon1-Loss'),
valid_loss[6].item())
lib.plot.plot(os.path.join(plotDir, 'Valid-StyRecon2-Loss'),
valid_loss[7].item())
lib.plot.plot(os.path.join(plotDir, 'Orig-OCR-WordAccuracy'),
current_accuracy[0])
lib.plot.plot(os.path.join(plotDir, 'Recon-OCR-WordAccuracy'),
current_accuracy[1])
lib.plot.plot(os.path.join(plotDir, 'Pair-OCR-WordAccuracy'),
current_accuracy[2])
lib.plot.plot(os.path.join(plotDir, 'Orig-OCR-CharAccuracy'),
current_norm_ED[0])
lib.plot.plot(os.path.join(plotDir, 'Recon-OCR-CharAccuracy'),
current_norm_ED[1])
lib.plot.plot(os.path.join(plotDir, 'Pair-OCR-CharAccuracy'),
current_norm_ED[2])
# keep best accuracy model (on valid dataset)
if current_accuracy[1] > best_accuracy:
best_accuracy = current_accuracy[1]
torch.save(
model.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_accuracy.pth'))
torch.save(
disModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_accuracy_dis.pth'))
if current_norm_ED[1] > best_norm_ED:
best_norm_ED = current_norm_ED[1]
torch.save(
model.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_norm_ED.pth'))
torch.save(
disModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_norm_ED_dis.pth'))
best_model_log = f'{"Best_accuracy_Recon":17s}: {best_accuracy:0.3f}, {"Best_norm_ED_Recon":17s}: {best_norm_ED:0.2f}'
# keep best accuracy model (on valid dataset)
if current_accuracy[0] > best_accuracy_ocr:
best_accuracy_ocr = current_accuracy[0]
if not opt.ocrFixed:
torch.save(
ocrModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_accuracy_ocr.pth'))
if current_norm_ED[0] > best_norm_ED_ocr:
best_norm_ED_ocr = current_norm_ED[0]
if not opt.ocrFixed:
torch.save(
ocrModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_norm_ED_ocr.pth'))
best_model_log_ocr = f'{"Best_accuracy_ocr":17s}: {best_accuracy_ocr:0.3f}, {"Best_norm_ED_ocr":17s}: {best_norm_ED_ocr:0.2f}'
loss_model_log = f'{loss_log}\n{current_model_log_ocr}\n{current_model_log_1}\n{current_model_log_2}\n{best_model_log_ocr}\n{best_model_log}'
print(loss_model_log)
log.write(loss_model_log + '\n')
# show some predicted results
dashed_line = '-' * 80
head = f'{"Ground Truth":32s} | {"Prediction":25s} | Confidence Score & T/F'
predicted_result_log = f'{dashed_line}\n{head}\n{dashed_line}\n'
for gt_ocr, pred_ocr, confidence_ocr, gt_1, pred_1, confidence_1, gt_2, pred_2, confidence_2 in zip(
labels[0][:5], preds[0][:5], confidence_score[0][:5],
labels[1][:5], preds[1][:5], confidence_score[1][:5],
labels[2][:5], preds[2][:5], confidence_score[2][:5]):
if 'Attn' in opt.Prediction:
# gt_ocr = gt_ocr[:gt_ocr.find('[s]')]
pred_ocr = pred_ocr[:pred_ocr.find('[s]')]
# gt_1 = gt_1[:gt_1.find('[s]')]
pred_1 = pred_1[:pred_1.find('[s]')]
# gt_2 = gt_2[:gt_2.find('[s]')]
pred_2 = pred_2[:pred_2.find('[s]')]
predicted_result_log += f'{"ocr"}: {gt_ocr:27s} | {pred_ocr:25s} | {confidence_ocr:0.4f}\t{str(pred_ocr == gt_ocr)}\n'
predicted_result_log += f'{"recon"}: {gt_1:25s} | {pred_1:25s} | {confidence_1:0.4f}\t{str(pred_1 == gt_1)}\n'
predicted_result_log += f'{"pair"}: {gt_2:26s} | {pred_2:25s} | {confidence_2:0.4f}\t{str(pred_2 == gt_2)}\n'
predicted_result_log += f'{dashed_line}'
print(predicted_result_log)
log.write(predicted_result_log + '\n')
loss_avg_ocr.reset()
loss_avg.reset()
loss_avg_dis.reset()
loss_avg_ocrRecon_1.reset()
loss_avg_ocrRecon_2.reset()
loss_avg_gen.reset()
loss_avg_imgRecon.reset()
loss_avg_styRecon.reset()
lib.plot.flush()
lib.plot.tick()
# save model per 1e+5 iter.
if (iteration) % 1e+5 == 0:
torch.save(
model.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'iter_' + str(iteration + 1) + '_synth.pth'))
if not opt.ocrFixed:
torch.save(
ocrModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'iter_' + str(iteration + 1) + '_ocr.pth'))
torch.save(
disModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'iter_' + str(iteration + 1) + '_dis.pth'))
if (iteration + 1) == opt.num_iter:
print('end the training')
sys.exit()
iteration += 1
def demo(opt):
""" model configuration """
if 'Transformer' in opt.SequenceModeling:
converter = TransformerLabelConverter(opt.character)
elif 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
# load model
if opt.saved_model != '':
print('loading pretrained model from %s' % opt.saved_model)
checkpoint = torch.load(opt.saved_model)
if type(checkpoint) == dict:
model.load_state_dict(checkpoint['state_dict'])
else:
model.load_state_dict(checkpoint)
del checkpoint
torch.cuda.empty_cache()
model = torch.nn.DataParallel(model)
if torch.cuda.is_available():
model = model.cuda()
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
dict_gt = {}
with open('gt.txt', 'r') as gt_file:
gt = gt_file.readlines()
for line in gt:
key = line.split(', "')[0]
value = line.split(', "')[1].replace('"\n', '').lower()
dict_gt[key] = value
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
with torch.no_grad():
image = image_tensors.cuda()
# For max length prediction
length_for_pred = torch.cuda.IntTensor([opt.batch_max_length] *
batch_size)
text_for_pred = torch.cuda.LongTensor(
batch_size, opt.batch_max_length + 1).fill_(0)
if 'Transformer' in opt.SequenceModeling:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
elif 'CTC' in opt.Prediction:
preds = model(image, text_for_pred).log_softmax(2)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.permute(1, 0, 2).max(2)
preds_index = preds_index.transpose(1, 0).contiguous().view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
print('-' * 80)
print('image_path\tpredicted_labels')
print('-' * 80)
for img_name, pred in zip(image_path_list, preds_str):
if 'Transformer' in opt.SequenceModeling:
pred = pred[:pred.find('</s>')]
elif 'Attn' in opt.Prediction:
# prune after "end of sentence" token ([s])
pred = pred[:pred.find('[s]')]
raw_img = cv2.imread(img_name)
raw_img = cv2.resize(raw_img, (200, 64))
tmp_img = np.zeros((128, 200, 3), np.uint8)
tmp_img.fill(255)
tmp_img[:64, :200] = raw_img
raw_img = tmp_img
font = cv2.FONT_HERSHEY_SIMPLEX
bottomLeftCornerOfText = (5, 90)
fontScale = 1
fontColor = (0, 0, 255)
lineType = 2
if pred == dict_gt[img_name.split('/')[-1]]:
cv2.putText(raw_img, pred, (5, 90), font, fontScale,
(0, 255, 0), lineType)
raw_img = raw_img[:96, :200]
cv2.imwrite('./trash/true/' + img_name.split('/')[-1], raw_img)
else:
cv2.putText(raw_img, pred, (5, 90), font, fontScale,
(0, 0, 255), lineType)
cv2.putText(raw_img, dict_gt[img_name.split('/')[-1]],
(5, 125), font, fontScale, (0, 255, 0), lineType)
cv2.imwrite('./trash/false/' + img_name.split('/')[-1],
raw_img)
print(f'{img_name}\t{pred}')
min_point = points_sorted[i][0]
max_point = points_sorted[i][1]
#print("Cropped image")
mask_file = result_folder + filename + "_" + str(
order_sorted[i]) + "_" + str(i) + '.jpg'
#print(mask_file)
crop_image = rgb_img[int(min_point[1]):int(max_point[1]),
int(min_point[0]):int(max_point[0])]
#plt.imshow(crop_image)
#plt.show()
cv2.imwrite(mask_file, crop_image)
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
#result_folder = './intermediate_result/'
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=result_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
print("Starting text classification")
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
#image = (torch.from_numpy(crop_image).unsqueeze(0)).to(device)
def train(opt):
""" dataset preparation """
if not opt.data_filtering_off:
print('Filtering the images containing characters which are not in opt.character')
print('Filtering the images whose label is longer than opt.batch_max_length')
# see https://github.com/clovaai/deep-text-recognition-benchmark/blob/6593928855fb7abb999a99f428b3e4477d4ae356/dataset.py#L130
opt.select_data = opt.select_data.split('-')
opt.batch_ratio = opt.batch_ratio.split('-')
train_dataset = Batch_Balanced_Dataset(opt)
log = open('./saved_models/{}/log_dataset.txt'.format(opt.experiment_name), 'a')
AlignCollate_valid = AlignCollate(imgH=opt.imgH, imgW=opt.imgW, keep_ratio_with_pad=opt.PAD)
valid_dataset, valid_dataset_log = hierarchical_dataset(root=opt.valid_data, opt=opt)
valid_loader = torch.utils.data.DataLoader(
valid_dataset, batch_size=opt.batch_size,
shuffle=True, # 'True' to check training progress with validation function.
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid, pin_memory=True)
log.write(valid_dataset_log)
print('-' * 80)
log.write('-' * 80 + '\n')
log.close()
"""部分参数初始化"""
learning_rate = 1e-4
label2num, num2label = label_num('all_labels.txt')
num_classes = len(label2num)
print('训练类别数：{}'.format(num_classes))
print('训练集标签列表：\n{}'.format(num2label.values()))
print('-' * 80)
class VGGNet(nn.Module):
def __init__(self, num_classes=num_classes):
super(VGGNet, self).__init__()
net = models.vgg16(pretrained=True)
net.classifier = nn.Sequential()
self.features = net
self.classifier = nn.Sequential(
nn.Linear(512 * 7 * 7, 512),
nn.ReLU(True),
nn.Dropout(),
nn.Linear(512, 128),
nn.ReLU(True),
nn.Dropout(),
nn.Linear(128, num_classes),
)
def forward(self, x):
x = self.features(x)
x = x.view(x.size(0), -1)
x = self.classifier(x)
return x
#--------------------训练过程---------------------------------
model = VGGNet()
if torch.cuda.is_available():
model.cuda()
params = [{'params': md.parameters()} for md in model.children()
if md in [model.classifier]]
optimizer = optim.Adam(model.parameters(), lr=learning_rate)
loss_func = nn.CrossEntropyLoss()
Loss_list = []
Accuracy_list = []
""" start training """
start_iter = 0
if opt.saved_model != '':
try:
start_iter = int(opt.saved_model.split('_')[-1].split('.')[0])
print('continue to train, start_iter: {}'.format(start_iter))
except:
pass
start_time = time.time()
best_accuracy = -1
best_norm_ED = -1
i = start_iter
num2label = opt.num2label
while(True):
# train part
# training-----------------------------
image_tensors, labels = train_dataset.get_batch()
batch_x = image_tensors.to(device)
#labels = [num2label[x] for x in labels]#将汉字转换回标签
batch_y = torch.from_numpy(np.asarray(labels, dtype=np.int8)).to(device)
train_loss = 0.
train_acc = 0.
out = model(batch_x)
loss = loss_func(out, batch_y.long())
train_loss += loss.item()
pred = torch.max(out, 1)[1]
train_correct = (pred == batch_y).sum()
train_acc += train_correct.item()
optimizer.zero_grad()
loss.backward()
optimizer.step()
if (i + 1) % 0.5e+2 == 0:
print('Step{}:'.format(i + 1))
print('Train Loss: {:.6f}, Acc: {:.6f}'.format(train_loss / (len(
labels)), train_acc / (len(labels))))
# save model per 1e+5 iter.
if (i + 1) % 5e+2 == 0:
torch.save(
model.state_dict(), './saved_models/{}/iter_{}.pth'.format(opt.experiment_name, i+1))
if i == opt.num_iter:
torch.save(
model.state_dict(), './saved_models/{}/iter_{}.pth'.format(opt.experiment_name, i+1))
print('end the training')
break
i += 1
# evaluation--------------------------------
if i % opt.valInterval == 0:
elapsed_time = time.time() - start_time
# for log
model.eval()
eval_loss = 0.
eval_acc = 0.
length_of_data = 0
for image_tensors, labels in valid_loader:
batch_x = image_tensors.to(device)
batch_y = torch.from_numpy(np.asarray(labels, dtype=np.int8)).to(device)
length_of_data += len(labels)
#batch_x, batch_y = Variable(batch_x, volatile=True).cuda(), Variable(batch_y, volatile=True).cuda()
out = model(batch_x)
loss = loss_func(out, batch_y.long())
eval_loss += loss.item()
pred = torch.max(out, 1)[1]
num_correct = (pred == batch_y).sum()
eval_acc += num_correct.item()
print('Test Loss: {:.6f}, Acc: {:.6f}'.format(eval_loss / (length_of_data), eval_acc / (length_of_data)))
Loss_list.append(eval_loss / (len(labels)))
Accuracy_list.append(100 * eval_acc / (len(labels)))
x1 = np.arange(0, 100).reshape(1,-1)
x2 = np.arange(0, 100).reshape(1,-1)
y1 = np.array(Accuracy_list).reshape(1,-1)
y2 = np.array(Loss_list).reshape(1,-1)
plt.figure()
plt.subplot(2, 1, 1)
plt.plot(x1, y1, 'o-')
plt.title('Test accuracy vs. epoches')
plt.ylabel('Test accuracy')
plt.subplot(2, 1, 2)
plt.plot(x2, y2, '.-')
plt.xlabel('Test loss vs. epoches')
plt.ylabel('Test loss')
plt.show()
plt.savefig("accuracy_loss.jpg")
sys.exit()
def demoToTxt2(image_folder, saved_model, txtFile): # sensitive
parser = argparse.ArgumentParser()
parser.add_argument('--image_folder',
default=image_folder,
help='path to image_folder which contains text images')
parser.add_argument('--workers',
type=int,
help='number of data loading workers',
default=4)
parser.add_argument('--batch_size',
type=int,
default=100,
help='input batch size')
parser.add_argument('--saved_model',
default=saved_model,
help="path to saved_model to evaluation")
""" Data processing """
parser.add_argument('--batch_max_length',
type=int,
default=20,
help='maximum-label-length')
parser.add_argument('--imgH',
type=int,
default=32,
help='the height of the input image')
parser.add_argument('--imgW',
type=int,
default=100,
help='the width of the input image')
parser.add_argument('--rgb', action='store_true', help='use rgb input')
parser.add_argument('--character',
type=str,
default='0123456789',
help='character label')
parser.add_argument('--sensitive',
default=True,
help='for sensitive character mode')
parser.add_argument('--PAD',
default=False,
action='store_true',
help='whether to keep ratio then pad for image resize')
""" Model Architecture """
parser.add_argument('--Transformation',
default='TPS',
type=str,
help='Transformation stage. None|TPS')
parser.add_argument('--FeatureExtraction',
default='ResNet',
type=str,
help='FeatureExtraction stage. VGG|RCNN|ResNet')
parser.add_argument('--SequenceModeling',
default='BiLSTM',
type=str,
help='SequenceModeling stage. None|BiLSTM')
parser.add_argument('--Prediction',
default='Attn',
type=str,
help='Prediction stage. CTC|Attn')
parser.add_argument('--num_fiducial',
type=int,
default=20,
help='number of fiducial points of TPS-STN')
parser.add_argument(
'--input_channel',
type=int,
default=1,
help='the number of input channel of Feature extractor')
parser.add_argument(
'--output_channel',
type=int,
default=512,
help='the number of output channel of Feature extractor')
parser.add_argument('--hidden_size',
type=int,
default=256,
help='the size of the LSTM hidden state')
opt = parser.parse_args()
""" vocab / character number configuration """
if opt.sensitive:
opt.character += 'ABCDEFGHIJKLMNOPQRSTUVWXYZ'
# opt.character = string.printable[:-6] # same with ASTER setting (use 94 char).
cudnn.benchmark = True
cudnn.deterministic = True
opt.num_gpu = torch.cuda.device_count()
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model)
if torch.cuda.is_available():
model = model.cuda()
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
saved_file = open(txtFile, 'w')
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
with torch.no_grad():
image = image_tensors.cuda()
# For max length prediction
length_for_pred = torch.cuda.IntTensor([opt.batch_max_length] *
batch_size)
text_for_pred = torch.cuda.LongTensor(
batch_size, opt.batch_max_length + 1).fill_(0)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred).log_softmax(2)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.permute(1, 0, 2).max(2)
preds_index = preds_index.transpose(1, 0).contiguous().view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
print('-' * 80)
print('image_path\tpredicted_labels')
print('-' * 80)
for img_name, pred in zip(image_path_list, preds_str):
if 'Attn' in opt.Prediction:
pred = pred[:pred.find(
'[s]')] # prune after "end of sentence" token ([s])
print(f'{img_name}\t{pred}')
saved_file.write(f'{img_name}\t{pred}\n')
def runDeepTextNet(segmentedImagesList):
opt = argparse.Namespace(FeatureExtraction='ResNet',
PAD=False,
Prediction='Attn',
SequenceModeling='BiLSTM',
Transformation='TPS',
batch_max_length=25,
batch_size=192,
character='0123456789abcdefghijklmnopqrstuvwxyz',
hidden_size=256,
image_folder='demo_image/',
imgH=32,
imgW=100,
input_channel=1,
num_class=38,
num_fiducial=20,
num_gpu=0,
output_channel=512,
rgb=False,
saved_model='TPS-ResNet-BiLSTM-Attn.pth',
sensitive=False,
workers=4)
model = Model(opt)
model = torch.nn.DataParallel(model).to('cpu')
directory = "TPS-ResNet-BiLSTM-Attn.pth"
model.load_state_dict(torch.load(directory, map_location='cpu'))
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=segmentedImagesList, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
out_preds_texts = []
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(image_path_list, preds_str,
preds_max_prob):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
# print(pred)
out_preds_texts.append(pred)
# print(out_preds_texts)
sentence_out = [' '.join(out_preds_texts)]
return (sentence_out)
def demo(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
#modified
# result_df = pd.DataFrame(columns=['video_id', 'word_id' ,'ocr_text'])
result_df = pd.read_csv(opt.out_df_path)
# result_df.append({'video_id':1, 'word_id': 1, 'ocr_text':"sdf"}, ignore_index=True)
###################
# predict
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
# preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index, preds_size)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
# log = open(f'./log_demo_result.txt', 'a')
# dashed_line = '-' * 80
# head = f'{"image_path":25s}\t{"predicted_labels":25s}\tconfidence score'
# print(f'{dashed_line}\n{head}\n{dashed_line}')
# log.write(f'{dashed_line}\n{head}\n{dashed_line}\n')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(image_path_list,
preds_str,
preds_max_prob):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# # calculate confidence score (= multiply of pred_max_prob)
# confidence_score = pred_max_prob.cumprod(dim=0)[-1]
# print(f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}')
# log.write(f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}\n')
#modified
img_name_path = Path(img_name)
# result_df = result_df.append({'video_id': img_name_path.parent.stem , 'word_id': img_name_path.stem , 'ocr_text': pred}, ignore_index=True)
result_df.loc[(result_df.video_id == img_name_path.parent.stem)
& (result_df.word_id == int(img_name_path.stem)),
'ocr_text'] = pred
##################
# log.close()
result_df.to_csv(opt.out_df_path, index=False)
def index():
model, converter, length_for_pred, text_for_pred, opt = loader()
start_time = time.time()
AlignCollate_demo = AlignCollate(imgH=opt['imgH'],
imgW=opt['imgW'],
keep_ratio_with_pad=opt['PAD'])
demo_data = RawDataset(root=opt['image_folder'], opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt['batch_size'],
shuffle=False,
num_workers=int(opt['workers']),
collate_fn=AlignCollate_demo,
pin_memory=True)
get_data = time.time() - start_time
# predict
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# 最大長予測用
# torch.cuda.synchronize(device)
if 'CTC' in opt['Prediction']:
preds = model(image, text_for_pred) #.log_softmax(2)
preds = preds.log_softmax(2)
# 最大確率を選択し、インデックスを文字にデコードします
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# 最大確率を選択し、インデックスを文字にデコードします
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
print('-' * 80)
print('image_path\tpredicted_labels')
print('-' * 80)
for img_name, pred in zip(image_path_list, preds_str):
if 'Attn' in opt['Prediction']:
pred = pred[:pred.find('[s]')] # 文の終わりトークン（[s]）の後の剪定
print(f'{img_name}\t{pred}')
forward_time = time.time() - start_time
only_infer_time = forward_time - get_data
print('*' * 80)
print('get_dta_time:{:.5f}[sec]'.format(get_data))
print('only_infer_time:{:.5f}[sec]'.format(only_infer_time))
print('total_time:{:.5f}[sec]'.format(forward_time))
print('*' * 80)
img_name = [i[9:] for i in image_path_list]
items = {}
for path, pred in zip(img_name, preds_str):
items[path] = pred
return render_template('index.html', images=items)
def demo(opt):
"""Open csv file wherein you are going to write the Predicted Words"""
data = pd.read_csv('/content/data.csv')
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
# preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
dashed_line = '-' * 80
# head = f'{"image_path":25s}\t {"predicted_labels":25s}\t confidence score'
# print(f'{dashed_line}\n{head}\n{dashed_line}')
# log.write(f'{dashed_line}\n{head}\n{dashed_line}\n')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(image_path_list,
preds_str,
preds_max_prob):
start = '/content/Result/Crop Words/'
path = os.path.relpath(img_name, start)
folder = os.path.dirname(path)
image_name = os.path.basename(path)
file_name = '_'.join(image_name.split('_')[:-8])
txt_file = os.path.join(start, folder, file_name)
log = open(f'{txt_file}_log_demo_result_vgg.txt', 'a')
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
imgcropped = cv2.imread(img_name)
cv2_imshow(imgcropped)
print(f'{pred:25s}\t {confidence_score:0.4f}\n')
# print(f'{image_name:25s}\t {pred:25s}\t {confidence_score:0.4f}')
log.write(
f'{image_name:25s}\t {pred:25s}\t {confidence_score:0.4f}\n'
)
log.close()
def demo(opt):
""" model configuration """
if opt.guide_training :
from model_guide import Model
else :
from model import Model
if opt.baiduCTC:
converter = CTCLabelConverterForBaiduWarpctc(opt.character)
else :
converter = CTCLabelConverter(opt.character)
if opt.Prediction == 'Attn' :
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
opt.num_class_ctc = opt.num_class
opt.num_class_attn = opt.num_class_ctc + 1
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial, opt.input_channel, opt.output_channel,
opt.hidden_size, opt.num_class, opt.batch_max_length, opt.Transformation, opt.FeatureExtraction,
opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device), strict = False)
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH, imgW=opt.imgW, keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(
demo_data, batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo, pin_memory=True)
# predict
model.eval()
data = pd.DataFrame()
with torch.no_grad():
ind = 0
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] * batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length + 1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
if opt.guide_training :
preds = model.module.inference(image, text_for_pred)
else :
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
# Select max probabilty (greedy decoding) then decode index to character
if opt.baiduCTC:
if (opt.beam_search):
preds_index = preds
else :
_, preds_index = preds.max(2)
preds_index = preds_index.view(-1)
else:
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index.data, preds_size.data,opt.beam_search)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
log = open(f'./log_demo_result.txt', 'a')
dashed_line = '-' * 80
head = f'{"image_path":25s}\t{"predicted_labels":25s}\tconfidence score'
print(f'{dashed_line}\n{head}\n{dashed_line}')
log.write(f'{dashed_line}\n{head}\n{dashed_line}\n')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(image_path_list, preds_str, preds_max_prob):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
filename = img_name
label = pred
conf = round(confidence_score.item(),3)
img = cv2.imread(filename)
img = cv2.cvtColor(img, cv2.COLOR_BGR2RGB)
img_pil = Image.fromarray(img)
img_buffer = io.BytesIO()
img_pil.save(img_buffer, format="PNG")
imgStr = base64.b64encode(img_buffer.getvalue()).decode("utf-8")
data.loc[ind, 'img'] = '<img src="data:image/png;base64,{0:s}">'.format(imgStr)
data.loc[ind, 'id'] = filename
data.loc[ind, 'label'] = label
data.loc[ind, 'conf'] = conf
ind+=1
print(f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}')
log.write(f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}\n')
log.close()
html_all = data.to_html(escape=False)
if opt.is_save :
text_file = open("result.html", "w")
text_file.write(html_all)
text_file.close()
def demo(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
elif 'Bert' in opt.Prediction:
converter = TransformerConverter(opt.character, opt.batch_max_length)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
opt.alphabet_size = len(opt.character) + 2 # +2 for [UNK]+[EOS]
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial, opt.input_channel, opt.output_channel,
opt.hidden_size, opt.num_class, opt.batch_max_length, opt.Transformation, opt.FeatureExtraction,
opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model)
if torch.cuda.is_available():
model = model.cuda()
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH, imgW=opt.imgW, keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(
demo_data, batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo, pin_memory=True)
# mkdir result
experiment_name = os.path.join('./result', opt.image_folder.split('/')[-2])
if not os.path.exists(experiment_name):
os.makedirs(experiment_name)
result = {}
# predict
model.eval()
for idx, (image_tensors, image_path_list) in enumerate(demo_loader):
batch_size = image_tensors.size(0)
with torch.no_grad():
image = image_tensors.cuda()
# For max length prediction
length_for_pred = torch.cuda.IntTensor([opt.batch_max_length] * batch_size)
text_for_pred = torch.cuda.LongTensor(batch_size, opt.batch_max_length + 1).fill_(0)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred).log_softmax(2)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.permute(1, 0, 2).max(2)
preds_index = preds_index.transpose(1, 0).contiguous().view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
elif 'Bert' in opt.Prediction:
with torch.no_grad():
pad_mask = None
preds = model(image, pad_mask)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds[1].max(2)
length_for_pred = torch.cuda.IntTensor([preds_index.size(-1)] * batch_size)
preds_str = converter.decode(preds_index, length_for_pred)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
print(f'{idx}/{len(demo_data) / opt.batch_size}')
for img_name, pred in zip(image_path_list, preds_str):
if 'Attn' in opt.Prediction:
pred = pred[:pred.find('[s]')] # prune after "end of sentence" token ([s])
# for show
# write in json
name = f'{img_name}'.split('/')[-1].replace('gt', 'res').split('.')[0]
value = [{"transcription": f'{pred}'}]
result[name] = value
with open(f'{experiment_name}/result.json', 'w') as f:
json.dump(result, f)
print("writed finish...")
def demo(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
print(opt.num_class)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# model.load_state_dict(copy_state_dict(torch.load(opt.saved_model, map_location=device)))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
# demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_data = LmdbDataset(root=opt.image_folder, opt=opt,
mode='Val') # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True,
drop_last=True)
log = open(f'./log_demo_result.txt', 'a')
# predict
model.eval()
fail_count, sample_count = 0, 0
record_count = 1
with torch.no_grad():
for image_tensors, image_path_list, original_images, indexes in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
# preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index, preds_size)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
dashed_line = '-' * 80
# head = f'{"image_path":25s}\t{"predicted_labels":25s}\tconfidence score'
# print(f'{dashed_line}\n{head}\n{dashed_line}')
# log.write(f'{dashed_line}\n{head}\n{dashed_line}\n')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for image_tensor, gt, pred, pred_max_prob, original_image, lmdb_key in zip(
image_tensors, image_path_list, preds_str, preds_max_prob,
original_images, indexes):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
if pred_max_prob.shape[0] > 0:
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
else:
confidence_score = 0.0
compare_gt = "".join(x.upper() for x in gt if x.isalnum())
compare_pred = "".join(x.upper() for x in pred if x.isalnum())
if compare_gt != compare_pred:
fail_count += 1
# print(f'{gt:25s}\t{pred:25s}\tFail\t{confidence_score:0.4f}\t{record_count}\n')
im = to_pil_image(image_tensor)
try:
# im.save(os.path.join('result', f'{lmdb_key}_{compare_pred}_{compare_gt}.jpeg'))
original_image.save(
os.path.join(
'result', 'fail',
f'{lmdb_key}_{compare_pred}_{compare_gt}.jpg'))
except Exception as e:
print(
f'Error: {e} {lmdb_key}_{compare_pred}_{compare_gt}'
)
exit(1)
else:
# print(f'{gt:25s}\t{pred:25s}\tSuccess\t{confidence_score:0.4f}')
im = to_pil_image(image_tensor)
try:
# im.save(os.path.join('result', f'{lmdb_key}_{compare_pred}_{compare_gt}.jpeg'))
original_image.save(
os.path.join(
'result', 'success',
f'{lmdb_key}_{compare_pred}_{compare_gt}.jpg'))
except Exception as e:
print(
f'Error: {e} {lmdb_key}_{compare_pred}_{compare_gt}'
)
exit(1)
sample_count += 1
record_count += 1
log.close()
print(
f'total accuracy: {(sample_count-fail_count)/sample_count:.2f} number of sample: {sample_count}'
)
def train(opt):
""" dataset preparation """
if not opt.data_filtering_off:
print(
'Filtering the images containing characters which are not in opt.character'
)
print(
'Filtering the images whose label is longer than opt.batch_max_length'
)
# see https://github.com/clovaai/deep-text-recognition-benchmark/blob/6593928855fb7abb999a99f428b3e4477d4ae356/dataset.py#L130
opt.select_data = opt.select_data.split('-')
opt.batch_ratio = opt.batch_ratio.split('-')
#considering the real images for discriminator
opt.batch_size = opt.batch_size * 2
train_dataset = Batch_Balanced_Dataset(opt)
log = open(os.path.join(opt.exp_dir, opt.exp_name, 'log_dataset.txt'), 'a')
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
valid_dataset, valid_dataset_log = hierarchical_dataset(
root=opt.valid_data, opt=opt)
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
shuffle=
True, # 'True' to check training progress with validation function.
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True)
log.write(valid_dataset_log)
print('-' * 80)
log.write('-' * 80 + '\n')
log.close()
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = AdaINGen(opt)
ocrModel = Model(opt)
disModel = MsImageDis(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
# weight initialization
for name, param in model.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# Recognizer weight initialization
for name, param in ocrModel.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# Discriminator weight initialization
for name, param in disModel.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# data parallel for multi-GPU
ocrModel = torch.nn.DataParallel(ocrModel).to(device)
ocrModel.train()
model = torch.nn.DataParallel(model).to(device)
model.train()
disModel = torch.nn.DataParallel(disModel).to(device)
disModel.train()
#loading pre-trained model
if opt.saved_ocr_model != '':
print(f'loading pretrained ocr model from {opt.saved_ocr_model}')
if opt.FT:
ocrModel.load_state_dict(torch.load(opt.saved_ocr_model),
strict=False)
else:
ocrModel.load_state_dict(torch.load(opt.saved_ocr_model))
print("OCRModel:")
print(ocrModel)
if opt.saved_synth_model != '':
print(f'loading pretrained synth model from {opt.saved_synth_model}')
if opt.FT:
model.load_state_dict(torch.load(opt.saved_synth_model),
strict=False)
else:
model.load_state_dict(torch.load(opt.saved_synth_model))
print("SynthModel:")
print(model)
if opt.saved_dis_model != '':
print(
f'loading pretrained discriminator model from {opt.saved_dis_model}'
)
if opt.FT:
disModel.load_state_dict(torch.load(opt.saved_dis_model),
strict=False)
else:
disModel.load_state_dict(torch.load(opt.saved_dis_model))
print("DisModel:")
print(disModel)
""" setup loss """
if 'CTC' in opt.Prediction:
ocrCriterion = torch.nn.CTCLoss(zero_infinity=True).to(device)
else:
ocrCriterion = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
recCriterion = torch.nn.L1Loss()
styleRecCriterion = torch.nn.L1Loss()
# loss averager
loss_avg_ocr = Averager()
loss_avg = Averager()
loss_avg_dis = Averager()
##---------------------------------------##
# filter that only require gradient decent
filtered_parameters = []
params_num = []
for p in filter(lambda p: p.requires_grad, model.parameters()):
filtered_parameters.append(p)
params_num.append(np.prod(p.size()))
print('Trainable params num : ', sum(params_num))
# [print(name, p.numel()) for name, p in filter(lambda p: p[1].requires_grad, model.named_parameters())]
# setup optimizer
if opt.adam:
optimizer = optim.Adam(filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
optimizer = optim.Adadelta(filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("SynthOptimizer:")
print(optimizer)
#filter parameters for OCR training
ocr_filtered_parameters = []
ocr_params_num = []
for p in filter(lambda p: p.requires_grad, ocrModel.parameters()):
ocr_filtered_parameters.append(p)
ocr_params_num.append(np.prod(p.size()))
print('OCR Trainable params num : ', sum(ocr_params_num))
# setup optimizer
if opt.adam:
ocr_optimizer = optim.Adam(ocr_filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
ocr_optimizer = optim.Adadelta(ocr_filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("OCROptimizer:")
print(ocr_optimizer)
#filter parameters for OCR training
dis_filtered_parameters = []
dis_params_num = []
for p in filter(lambda p: p.requires_grad, disModel.parameters()):
dis_filtered_parameters.append(p)
dis_params_num.append(np.prod(p.size()))
print('Dis Trainable params num : ', sum(dis_params_num))
# setup optimizer
if opt.adam:
dis_optimizer = optim.Adam(dis_filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
dis_optimizer = optim.Adadelta(dis_filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("DisOptimizer:")
print(dis_optimizer)
##---------------------------------------##
""" final options """
with open(os.path.join(opt.exp_dir, opt.exp_name, 'opt.txt'),
'a') as opt_file:
opt_log = '------------ Options -------------\n'
args = vars(opt)
for k, v in args.items():
opt_log += f'{str(k)}: {str(v)}\n'
opt_log += '---------------------------------------\n'
print(opt_log)
opt_file.write(opt_log)
""" start training """
start_iter = 0
if opt.saved_synth_model != '':
try:
start_iter = int(
opt.saved_synth_model.split('_')[-1].split('.')[0])
print(f'continue to train, start_iter: {start_iter}')
except:
pass
start_time = time.time()
best_accuracy = -1
best_norm_ED = -1
best_accuracy_ocr = -1
best_norm_ED_ocr = -1
iteration = start_iter
# cntr=0
while (True):
# train part
image_tensors_all, labels_1_all, labels_2_all = train_dataset.get_batch(
)
# ## comment
# pdb.set_trace()
# for imgCntr in range(image_tensors.shape[0]):
# save_image(tensor2im(image_tensors[imgCntr]),'temp/'+str(imgCntr)+'.png')
# pdb.set_trace()
# ###
# print(cntr)
# cntr+=1
disCnt = int(image_tensors_all.size(0) / 2)
image_tensors, image_tensors_real, labels_1, labels_2 = image_tensors_all[:disCnt], image_tensors_all[
disCnt:disCnt +
disCnt], labels_1_all[:disCnt], labels_2_all[:disCnt]
image = image_tensors.to(device)
image_real = image_tensors_real.to(device)
text_1, length_1 = converter.encode(
labels_1, batch_max_length=opt.batch_max_length)
text_2, length_2 = converter.encode(
labels_2, batch_max_length=opt.batch_max_length)
batch_size = image.size(0)
images_recon_1, images_recon_2, style = model(image, text_1, text_2)
if 'CTC' in opt.Prediction:
#ocr training
preds_ocr = ocrModel(image, text_1)
preds_size_ocr = torch.IntTensor([preds_ocr.size(1)] * batch_size)
preds_ocr = preds_ocr.log_softmax(2).permute(1, 0, 2)
ocrCost_train = ocrCriterion(preds_ocr, text_1, preds_size_ocr,
length_1)
#dis training
#Check: Using alternate real images
disCost = opt.disWeight * 0.5 * (
disModel.module.calc_dis_loss(images_recon_1.detach(),
image_real) +
disModel.module.calc_dis_loss(images_recon_2.detach(), image))
#synth training
preds_1 = ocrModel(images_recon_1, text_1)
preds_size_1 = torch.IntTensor([preds_1.size(1)] * batch_size)
preds_1 = preds_1.log_softmax(2).permute(1, 0, 2)
preds_2 = ocrModel(images_recon_2, text_2)
preds_size_2 = torch.IntTensor([preds_2.size(1)] * batch_size)
preds_2 = preds_2.log_softmax(2).permute(1, 0, 2)
ocrCost = 0.5 * (
ocrCriterion(preds_1, text_1, preds_size_1, length_1) +
ocrCriterion(preds_2, text_2, preds_size_2, length_2))
#gen training
disGenCost = 0.5 * (disModel.module.calc_gen_loss(images_recon_1) +
disModel.module.calc_gen_loss(images_recon_2))
else:
preds = model(image, text[:, :-1]) # align with Attention.forward
target = text[:, 1:] # without [GO] Symbol
ocrCost = ocrCriterion(preds.view(-1, preds.shape[-1]),
target.contiguous().view(-1))
recCost = recCriterion(images_recon_1, image)
styleRecCost = styleRecCriterion(
model(images_recon_2, None, None, styleFlag=True), style.detach())
cost = opt.ocrWeight * ocrCost + opt.reconWeight * recCost + opt.disWeight * disGenCost + opt.styleReconWeight * styleRecCost
disModel.zero_grad()
disCost.backward()
torch.nn.utils.clip_grad_norm_(
disModel.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
dis_optimizer.step()
loss_avg_dis.add(disCost)
model.zero_grad()
ocrModel.zero_grad()
disModel.zero_grad()
cost.backward()
torch.nn.utils.clip_grad_norm_(
model.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
optimizer.step()
loss_avg.add(cost)
#training OCR
ocrModel.zero_grad()
ocrCost_train.backward()
torch.nn.utils.clip_grad_norm_(
ocrModel.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
ocr_optimizer.step()
loss_avg_ocr.add(ocrCost_train)
#START HERE
# validation part
if (
iteration + 1
) % opt.valInterval == 0 or iteration == 0: # To see training progress, we also conduct validation when 'iteration == 0'
#Save training images
os.makedirs(os.path.join(opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration)),
exist_ok=True)
for trImgCntr in range(batch_size):
try:
save_image(
tensor2im(image[trImgCntr].detach()),
os.path.join(
opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration),
str(trImgCntr) + '_input_' + labels_1[trImgCntr] +
'.png'))
save_image(
tensor2im(images_recon_1[trImgCntr].detach()),
os.path.join(
opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration),
str(trImgCntr) + '_recon_' + labels_1[trImgCntr] +
'.png'))
save_image(
tensor2im(images_recon_2[trImgCntr].detach()),
os.path.join(
opt.exp_dir, opt.exp_name, 'trainImages',
str(iteration),
str(trImgCntr) + '_pair_' + labels_2[trImgCntr] +
'.png'))
except:
print('Warning while saving training image')
elapsed_time = time.time() - start_time
# for log
with open(os.path.join(opt.exp_dir, opt.exp_name, 'log_train.txt'),
'a') as log:
model.eval()
ocrModel.eval()
disModel.eval()
with torch.no_grad():
# valid_loss, current_accuracy, current_norm_ED, preds, confidence_score, labels, infer_time, length_of_data = validation(
# model, criterion, valid_loader, converter, opt)
valid_loss, current_accuracy, current_norm_ED, preds, confidence_score, labels, infer_time, length_of_data = validation_synth_lrw(
iteration, model, ocrModel, disModel, recCriterion,
styleRecCriterion, ocrCriterion, valid_loader,
converter, opt)
model.train()
ocrModel.train()
disModel.train()
# training loss and validation loss
loss_log = f'[{iteration+1}/{opt.num_iter}] Train OCR loss: {loss_avg_ocr.val():0.5f}, Train Synth loss: {loss_avg.val():0.5f}, Train Dis loss: {loss_avg_dis.val():0.5f}, Valid OCR loss: {valid_loss[0]:0.5f}, Valid Synth loss: {valid_loss[1]:0.5f}, Valid Dis loss: {valid_loss[2]:0.5f}, Elapsed_time: {elapsed_time:0.5f}'
loss_avg_ocr.reset()
loss_avg.reset()
loss_avg_dis.reset()
current_model_log_ocr = f'{"Current_accuracy_OCR":17s}: {current_accuracy[0]:0.3f}, {"Current_norm_ED_OCR":17s}: {current_norm_ED[0]:0.2f}'
current_model_log_1 = f'{"Current_accuracy_recon":17s}: {current_accuracy[1]:0.3f}, {"Current_norm_ED_recon":17s}: {current_norm_ED[1]:0.2f}'
current_model_log_2 = f'{"Current_accuracy_pair":17s}: {current_accuracy[2]:0.3f}, {"Current_norm_ED_pair":17s}: {current_norm_ED[2]:0.2f}'
# keep best accuracy model (on valid dataset)
if current_accuracy[1] > best_accuracy:
best_accuracy = current_accuracy[1]
torch.save(
model.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_accuracy.pth'))
torch.save(
disModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_accuracy_dis.pth'))
if current_norm_ED[1] > best_norm_ED:
best_norm_ED = current_norm_ED[1]
torch.save(
model.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_norm_ED.pth'))
torch.save(
disModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_norm_ED_dis.pth'))
best_model_log = f'{"Best_accuracy_Recon":17s}: {best_accuracy:0.3f}, {"Best_norm_ED_Recon":17s}: {best_norm_ED:0.2f}'
# keep best accuracy model (on valid dataset)
if current_accuracy[0] > best_accuracy_ocr:
best_accuracy_ocr = current_accuracy[0]
torch.save(
ocrModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_accuracy_ocr.pth'))
if current_norm_ED[0] > best_norm_ED_ocr:
best_norm_ED_ocr = current_norm_ED[0]
torch.save(
ocrModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'best_norm_ED_ocr.pth'))
best_model_log_ocr = f'{"Best_accuracy_ocr":17s}: {best_accuracy_ocr:0.3f}, {"Best_norm_ED_ocr":17s}: {best_norm_ED_ocr:0.2f}'
loss_model_log = f'{loss_log}\n{current_model_log_ocr}\n{current_model_log_1}\n{current_model_log_2}\n{best_model_log_ocr}\n{best_model_log}'
print(loss_model_log)
log.write(loss_model_log + '\n')
# show some predicted results
dashed_line = '-' * 80
head = f'{"Ground Truth":32s} | {"Prediction":25s} | Confidence Score & T/F'
predicted_result_log = f'{dashed_line}\n{head}\n{dashed_line}\n'
for gt_ocr, pred_ocr, confidence_ocr, gt_1, pred_1, confidence_1, gt_2, pred_2, confidence_2 in zip(
labels[0][:5], preds[0][:5], confidence_score[0][:5],
labels[1][:5], preds[1][:5], confidence_score[1][:5],
labels[2][:5], preds[2][:5], confidence_score[2][:5]):
if 'Attn' in opt.Prediction:
gt = gt[:gt.find('[s]')]
pred = pred[:pred.find('[s]')]
predicted_result_log += f'{"ocr"}: {gt_ocr:27s} | {pred_ocr:25s} | {confidence_ocr:0.4f}\t{str(pred_ocr == gt_ocr)}\n'
predicted_result_log += f'{"recon"}: {gt_1:25s} | {pred_1:25s} | {confidence_1:0.4f}\t{str(pred_1 == gt_1)}\n'
predicted_result_log += f'{"pair"}: {gt_2:26s} | {pred_2:25s} | {confidence_2:0.4f}\t{str(pred_2 == gt_2)}\n'
predicted_result_log += f'{dashed_line}'
print(predicted_result_log)
log.write(predicted_result_log + '\n')
# save model per 1e+5 iter.
if (iteration + 1) % 1e+5 == 0:
torch.save(
model.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'iter_{iteration+1}.pth'))
torch.save(
ocrModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'iter_{iteration+1}_ocr.pth'))
torch.save(
disModel.state_dict(),
os.path.join(opt.exp_dir, opt.exp_name,
'iter_{iteration+1}_dis.pth'))
if (iteration + 1) == opt.num_iter:
print('end the training')
sys.exit()
iteration += 1
def train(opt):
""" dataset preparation """
if not opt.data_filtering_off:
print(
'Filtering the images containing characters which are not in opt.character'
)
print(
'Filtering the images whose label is longer than opt.batch_max_length'
)
# see https://github.com/clovaai/deep-text-recognition-benchmark/blob/6593928855fb7abb999a99f428b3e4477d4ae356/dataset.py#L130
opt.select_data = opt.select_data.split('-')
opt.batch_ratio = opt.batch_ratio.split('-')
train_dataset = Batch_Balanced_Dataset(opt)
log = open(f'./saved_models/{opt.exp_name}/log_dataset.txt', 'a')
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
valid_dataset, valid_dataset_log = hierarchical_dataset(
root=opt.valid_data, opt=opt)
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
shuffle=
True, # 'True' to check training progress with validation function.
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True)
log.write(valid_dataset_log)
print('-' * 80)
log.write('-' * 80 + '\n')
log.close()
""" model configuration """
# CTCLoss
converter_ctc = CTCLabelConverter(opt.character)
# Attention
converter_atten = AttnLabelConverter(opt.character)
opt.num_class_ctc = len(converter_ctc.character)
opt.num_class_atten = len(converter_atten.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class_ctc, opt.num_class_atten, opt.batch_max_length,
opt.Transformation, opt.FeatureExtraction, opt.SequenceModeling,
opt.Prediction)
# weight initialization
for name, param in model.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# filter that only require gradient decent
filtered_parameters = []
params_num = []
for p in filter(lambda p_: p_.requires_grad, model.parameters()):
filtered_parameters.append(p)
params_num.append(np.prod(p.size()))
print('Trainable params num : ', sum(params_num))
# [print(name, p.numel()) for name, p in filter(lambda p: p[1].requires_grad, model.named_parameters())]
# setup optimizer
if opt.adam:
optimizer = optim.Adam(filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
optimizer = optim.Adadelta(filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("Optimizer:")
print(optimizer)
# use fp16 to train
model = model.to(device)
if opt.fp16:
with open(f'./saved_models/{opt.exp_name}/log_train.txt', 'a') as log:
log.write('==> Enable fp16 training' + '\n')
print('==> Enable fp16 training')
model, optimizer = amp.initialize(model, optimizer, opt_level='O1')
# data parallel for multi-GPU
if torch.cuda.device_count() > 1:
model = torch.nn.DataParallel(model).to(device)
model.train()
# for i in model.module.Prediction_atten:
# i.to(device)
# for i in model.module.Feat_Extraction.scr:
# i.to(device)
if opt.saved_model != '':
print(f'loading pretrained model from {opt.saved_model}')
if opt.FT:
model.load_state_dict(torch.load(opt.saved_model), strict=False)
else:
model.load_state_dict(torch.load(opt.saved_model))
print("Model:")
print(model)
""" setup loss """
criterion_ctc = torch.nn.CTCLoss(zero_infinity=True).to(device)
criterion_atten = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
# loss averager
loss_avg = Averager()
""" final options """
writer = SummaryWriter(f'./saved_models/{opt.exp_name}')
# print(opt)
with open(f'./saved_models/{opt.exp_name}/opt.txt', 'a') as opt_file:
opt_log = '------------ Options -------------\n'
args = vars(opt)
for k, v in args.items():
opt_log += f'{str(k)}: {str(v)}\n'
opt_log += '---------------------------------------\n'
print(opt_log)
opt_file.write(opt_log)
""" start training """
start_iter = 0
if opt.saved_model != '':
try:
start_iter = int(opt.saved_model.split('_')[-1].split('.')[0])
print(f'continue to train, start_iter: {start_iter}')
except:
pass
start_time = time.time()
best_accuracy = -1
best_norm_ED = -1
iteration = start_iter
# image_tensors, labels = train_dataset.get_batch()
while True:
# train part
image_tensors, labels = train_dataset.get_batch()
image = image_tensors.to(device)
batch_size = image.size(0)
text_ctc, length_ctc = converter_ctc.encode(
labels, batch_max_length=opt.batch_max_length)
text_atten, length_atten = converter_atten.encode(
labels, batch_max_length=opt.batch_max_length)
# type tuple; (tensor, list); text_atten[:, :-1]:align with Attention.forward
preds_ctc, preds_atten = model(image, text_atten[:, :-1])
# CTC Loss
preds_size = torch.IntTensor([preds_ctc.size(1)] * batch_size)
# _, preds_index = preds_ctc.max(2)
# preds_str_ctc = converter_ctc.decode(preds_index.data, preds_size.data)
preds_ctc = preds_ctc.log_softmax(2).permute(1, 0, 2)
cost_ctc = 0.1 * criterion_ctc(preds_ctc, text_ctc, preds_size,
length_ctc)
# Attention Loss
# preds_atten = [i[:, :text_atten.shape[1] - 1, :] for i in preds_atten]
# # select max probabilty (greedy decoding) then decode index to character
# preds_index_atten = [i.max(2)[1] for i in preds_atten]
# length_for_pred = torch.IntTensor([opt.batch_max_length] * batch_size).to(device)
# preds_str_atten = [converter_atten.decode(i, length_for_pred) for i in preds_index_atten]
# preds_str_atten2 = preds_str_atten
# preds_str_atten = []
# for i in preds_str_atten2: # prune after "end of sentence" token ([s])
# temp = []
# for j in i:
# j = j[:j.find('[s]')]
# temp.append(j)
# preds_str_atten.append(temp)
# preds_str_atten = [j[:j.find('[s]')] for i in preds_str_atten for j in i]
target = text_atten[:, 1:] # without [GO] Symbol
# cost_atten = 1.0 * criterion_atten(preds_atten.view(-1, preds_atten.shape[-1]), target.contiguous().view(-1))
for index, pred in enumerate(preds_atten):
if index == 0:
cost_atten = 1.0 * criterion_atten(
pred.view(-1, pred.shape[-1]),
target.contiguous().view(-1))
else:
cost_atten += 1.0 * criterion_atten(
pred.view(-1, pred.shape[-1]),
target.contiguous().view(-1))
# cost_atten = [1.0 * criterion_atten(pred.view(-1, pred.shape[-1]), target.contiguous().view(-1)) for pred in
# preds_atten]
# cost_atten = criterion_atten(preds_atten.view(-1, preds_atten.shape[-1]), target.contiguous().view(-1))
cost = cost_ctc + cost_atten
writer.add_scalar('loss', cost.item(), global_step=iteration + 1)
# cost = cost_ctc
# cost = cost_atten
if (iteration + 1) % 100 == 0:
print('\riter: {:4d}\tloss: {:6.3f}\tavg: {:6.3f}'.format(
iteration + 1, cost.item(), loss_avg.val()),
end='\n')
else:
print('\riter: {:4d}\tloss: {:6.3f}\tavg: {:6.3f}'.format(
iteration + 1, cost.item(), loss_avg.val()),
end='')
sys.stdout.flush()
if cost < 0.001:
print(f'iter: {iteration + 1}\tloss: {cost}')
# aaaaaa = 0
# model.zero_grad()
optimizer.zero_grad()
if torch.isnan(cost):
print(f'iter: {iteration + 1}\tloss: {cost}\t==> Loss is NAN')
sys.exit()
elif torch.isinf(cost):
print(f'iter: {iteration + 1}\tloss: {cost}\t==> Loss is INF')
sys.exit()
else:
if opt.fp16:
with amp.scale_loss(cost, optimizer) as scaled_loss:
scaled_loss.backward()
else:
cost.backward()
torch.nn.utils.clip_grad_norm_(
model.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
optimizer.step()
loss_avg.add(cost)
writer.add_scalar('loss_avg',
loss_avg.val(),
global_step=iteration + 1)
# if loss_avg.val() <= 0.6:
# opt.grad_clip = 2
# if loss_avg.val() <= 0.3:
# opt.grad_clip = 1
# validation part
if iteration == 0 or (
iteration + 1
) % opt.valInterval == 0: # To see training progress, we also conduct validation when 'iteration == 0'
elapsed_time = time.time() - start_time
# for log
with open(f'./saved_models/{opt.exp_name}/log_train.txt',
'a') as log:
model.eval()
with torch.no_grad():
valid_loss, current_accuracy, current_norm_ED, preds, confidence_score, labels, infer_time, length_of_data = validation(
model, criterion_atten, valid_loader, converter_atten,
opt)
model.train()
writer.add_scalar('accuracy',
current_accuracy,
global_step=iteration + 1)
# training loss and validation loss
loss_log = f'[{iteration + 1}/{opt.num_iter}] Train loss: {loss_avg.val():0.5f}, Valid loss: {valid_loss:0.5f}, Elapsed_time: {elapsed_time:0.5f}'
loss_avg.reset()
current_model_log = f'{"Current_accuracy":17s}: {current_accuracy:0.3f}, {"Current_norm_ED":17s}: {current_norm_ED:0.2f}'
# keep best accuracy model (on valid dataset)
if current_accuracy > best_accuracy:
best_accuracy = current_accuracy
torch.save(
model.state_dict(),
f'./saved_models/{opt.exp_name}/best_accuracy.pth')
if current_norm_ED > best_norm_ED:
best_norm_ED = current_norm_ED
torch.save(
model.state_dict(),
f'./saved_models/{opt.exp_name}/best_norm_ED.pth')
best_model_log = f'{"Best_accuracy":17s}: {best_accuracy:0.3f}, {"Best_norm_ED":17s}: {best_norm_ED:0.2f}'
loss_model_log = f'{loss_log}\n{current_model_log}\n{best_model_log}'
print(loss_model_log)
log.write(loss_model_log + '\n')
# show some predicted results
dashed_line = '-' * 80
head = f'{"Ground Truth":25s} | {"Prediction":25s} | Confidence Score & T/F'
predicted_result_log = f'{dashed_line}\n{head}\n{dashed_line}\n'
for gt, pred, confidence in zip(labels[:5], preds[:5],
confidence_score[:5]):
gt = gt[:gt.find('[s]')]
pred = pred[:pred.find('[s]')]
predicted_result_log += f'{gt:25s} | {pred:25s} | {confidence:0.4f}\t{str(pred == gt)}\n'
predicted_result_log += f'{dashed_line}'
print(predicted_result_log)
log.write(predicted_result_log + '\n')
# save model per 1e+5 iter.
if (iteration + 1) % 1e+5 == 0:
torch.save(
model.state_dict(),
f'./saved_models/{opt.exp_name}/iter_{iteration + 1}.pth')
if (iteration + 1) == opt.num_iter:
print('end the training')
sys.exit()
# if (iteration + 1) % opt.valInterval == 0:
# print(f'iter: {iteration + 1}\tloss: {cost}')
iteration += 1
def demo(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index.data, preds_size.data)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
log = open('./log_demo_result.txt', 'a')
dashed_line = '-' * 80
head = "image_path" + "\t" + "predicted_labels" + "\t" + "confidence score"
print(dashed_line + "\n" + head + "\n" + dashed_line)
log.write(dashed_line + "\n" + head + "\n" + dashed_line)
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(image_path_list,
preds_str,
preds_max_prob):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
print(img_name,
pred) #(img_name +"\t"+ pred +"\t"+ confidence_score)
log.write(img_name + "\t" + pred + "\n")
log.close()
def test(opt):
lib.print_model_settings(locals().copy())
if 'Attn' in opt.Prediction:
converter = AttnLabelConverter(opt.character)
text_len = opt.batch_max_length + 2
else:
converter = CTCLabelConverter(opt.character)
text_len = opt.batch_max_length
opt.classes = converter.character
""" dataset preparation """
if not opt.data_filtering_off:
print(
'Filtering the images containing characters which are not in opt.character'
)
print(
'Filtering the images whose label is longer than opt.batch_max_length'
)
# see https://github.com/clovaai/deep-text-recognition-benchmark/blob/6593928855fb7abb999a99f428b3e4477d4ae356/dataset.py#L130
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
valid_dataset = LmdbDataset(root=opt.test_data, opt=opt)
test_data_sampler = data_sampler(valid_dataset,
shuffle=False,
distributed=False)
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
shuffle=
False, # 'True' to check training progress with validation function.
sampler=test_data_sampler,
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True,
drop_last=False)
print('-' * 80)
opt.num_class = len(converter.character)
ocrModel = ModelV1(opt).to(device)
## Loading pre-trained files
print(f'loading pretrained ocr model from {opt.saved_ocr_model}')
checkpoint = torch.load(opt.saved_ocr_model,
map_location=lambda storage, loc: storage)
ocrModel.load_state_dict(checkpoint)
evalCntr = 0
fCntr = 0
c1_s1_input_correct = 0.0
c1_s1_input_ed_correct = 0.0
# pdb.set_trace()
for vCntr, (image_input_tensors, labels_gt) in enumerate(valid_loader):
print(vCntr)
image_input_tensors = image_input_tensors.to(device)
text_gt, length_gt = converter.encode(
labels_gt, batch_max_length=opt.batch_max_length)
with torch.no_grad():
currBatchSize = image_input_tensors.shape[0]
# text_for_pred = torch.LongTensor(opt.batch_size, opt.batch_max_length + 1).fill_(0).to(device)
length_for_pred = torch.IntTensor([opt.batch_max_length] *
currBatchSize).to(device)
#Run OCR prediction
if 'CTC' in opt.Prediction:
preds = ocrModel(image_input_tensors, text_gt, is_train=False)
preds_size = torch.IntTensor([preds.size(1)] *
image_input_tensors.shape[0])
_, preds_index = preds.max(2)
preds_str_gt_1 = converter.decode(preds_index.data,
preds_size.data)
else:
preds = ocrModel(
image_input_tensors, text_gt[:, :-1],
is_train=False) # align with Attention.forward
_, preds_index = preds.max(2)
preds_str_gt_1 = converter.decode(preds_index, length_for_pred)
for idx, pred in enumerate(preds_str_gt_1):
pred_EOS = pred.find('[s]')
preds_str_gt_1[
idx] = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
for trImgCntr in range(image_input_tensors.shape[0]):
#ocr accuracy
# for gt, pred, pred_max_prob in zip(labels, preds_str, preds_max_prob):
c1_s1_input_gt = labels_gt[trImgCntr]
c1_s1_input_ocr = preds_str_gt_1[trImgCntr]
if c1_s1_input_gt == c1_s1_input_ocr:
c1_s1_input_correct += 1
# ICDAR2019 Normalized Edit Distance
if len(c1_s1_input_gt) == 0 or len(c1_s1_input_ocr) == 0:
c1_s1_input_ed_correct += 0
elif len(c1_s1_input_gt) > len(c1_s1_input_ocr):
c1_s1_input_ed_correct += 1 - edit_distance(
c1_s1_input_ocr, c1_s1_input_gt) / len(c1_s1_input_gt)
else:
c1_s1_input_ed_correct += 1 - edit_distance(
c1_s1_input_ocr, c1_s1_input_gt) / len(c1_s1_input_ocr)
evalCntr += 1
fCntr += 1
avg_c1_s1_input_wer = c1_s1_input_correct / float(evalCntr)
avg_c1_s1_input_cer = c1_s1_input_ed_correct / float(evalCntr)
# if not(opt.realVaData):
with open(os.path.join(opt.exp_dir, opt.exp_name, 'log_test.txt'),
'a') as log:
# training loss and validation loss
loss_log = f'Word Acc: {avg_c1_s1_input_wer:0.5f}, Test Input Char Acc: {avg_c1_s1_input_cer:0.5f}'
print(loss_log)
log.write(loss_log + "\n")
def train(opt):
""" dataset preparation """
opt.select_data = opt.select_data.split('-')
opt.batch_ratio = opt.batch_ratio.split('-')
train_dataset = Batch_Balanced_Dataset(opt)
AlignCollate_valid = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
valid_dataset = hierarchical_dataset(root=opt.valid_data, opt=opt)
valid_loader = torch.utils.data.DataLoader(
valid_dataset,
batch_size=opt.batch_size,
shuffle=
True, # 'True' to check training progress with validation function.
num_workers=int(opt.workers),
collate_fn=AlignCollate_valid,
pin_memory=True)
print('-' * 80)
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
# weight initialization
for name, param in model.named_parameters():
if 'localization_fc2' in name:
print(f'Skip {name} as it is already initialized')
continue
try:
if 'bias' in name:
init.constant_(param, 0.0)
elif 'weight' in name:
init.kaiming_normal_(param)
except Exception as e: # for batchnorm.
if 'weight' in name:
param.data.fill_(1)
continue
# data parallel for multi-GPU
model = torch.nn.DataParallel(model).to(device)
model.train()
if opt.continue_model != '':
print(f'loading pretrained model from {opt.continue_model}')
model.load_state_dict(torch.load(opt.continue_model))
print("Model:")
print(model)
""" setup loss """
if 'CTC' in opt.Prediction:
criterion = torch.nn.CTCLoss(zero_infinity=True).to(device)
else:
criterion = torch.nn.CrossEntropyLoss(ignore_index=0).to(
device) # ignore [GO] token = ignore index 0
# loss averager
loss_avg = Averager()
# filter that only require gradient decent
filtered_parameters = []
params_num = []
for p in filter(lambda p: p.requires_grad, model.parameters()):
filtered_parameters.append(p)
params_num.append(np.prod(p.size()))
print('Trainable params num : ', sum(params_num))
# [print(name, p.numel()) for name, p in filter(lambda p: p[1].requires_grad, model.named_parameters())]
# setup optimizer
if opt.adam:
optimizer = optim.Adam(filtered_parameters,
lr=opt.lr,
betas=(opt.beta1, 0.999))
else:
optimizer = optim.Adadelta(filtered_parameters,
lr=opt.lr,
rho=opt.rho,
eps=opt.eps)
print("Optimizer:")
print(optimizer)
""" final options """
# print(opt)
with open(f'./saved_models/{opt.experiment_name}/opt.txt',
'a') as opt_file:
opt_log = '------------ Options -------------\n'
args = vars(opt)
for k, v in args.items():
opt_log += f'{str(k)}: {str(v)}\n'
opt_log += '---------------------------------------\n'
print(opt_log)
opt_file.write(opt_log)
""" start training """
start_iter = 0
if opt.continue_model != '':
start_iter = int(opt.continue_model.split('_')[-1].split('.')[0])
print(f'continue to train, start_iter: {start_iter}')
start_time = time.time()
best_accuracy = -1
best_norm_ED = 1e+6
i = start_iter
while (True):
# train part
image_tensors, labels = train_dataset.get_batch()
image = image_tensors.to(device)
text, length = converter.encode(labels,
batch_max_length=opt.batch_max_length)
batch_size = image.size(0)
if 'CTC' in opt.Prediction:
preds = model(image, text).log_softmax(2)
preds_size = torch.IntTensor([preds.size(1)] *
batch_size).to(device)
preds = preds.permute(1, 0, 2) # to use CTCLoss format
# To avoid ctc_loss issue, disabled cudnn for the computation of the ctc_loss
# https://github.com/jpuigcerver/PyLaia/issues/16
torch.backends.cudnn.enabled = False
cost = criterion(preds, text, preds_size, length)
torch.backends.cudnn.enabled = True
else:
preds = model(image, text[:, :-1]) # align with Attention.forward
target = text[:, 1:] # without [GO] Symbol
cost = criterion(preds.view(-1, preds.shape[-1]),
target.contiguous().view(-1))
model.zero_grad()
cost.backward()
torch.nn.utils.clip_grad_norm_(
model.parameters(),
opt.grad_clip) # gradient clipping with 5 (Default)
optimizer.step()
loss_avg.add(cost)
# validation part
if i % opt.valInterval == 0:
elapsed_time = time.time() - start_time
print(
f'[{i}/{opt.num_iter}] Loss: {loss_avg.val():0.5f} elapsed_time: {elapsed_time:0.5f}'
)
# for log
with open(f'./saved_models/{opt.experiment_name}/log_train.txt',
'a') as log:
log.write(
f'[{i}/{opt.num_iter}] Loss: {loss_avg.val():0.5f} elapsed_time: {elapsed_time:0.5f}\n'
)
loss_avg.reset()
model.eval()
with torch.no_grad():
valid_loss, current_accuracy, current_norm_ED, preds, labels, infer_time, length_of_data = validation(
model, criterion, valid_loader, converter, opt)
model.train()
for pred, gt in zip(preds[:5], labels[:5]):
if 'Attn' in opt.Prediction:
pred = pred[:pred.find('[s]')]
gt = gt[:gt.find('[s]')]
print(f'{pred:20s}, gt: {gt:20s}, {str(pred == gt)}')
log.write(
f'{pred:20s}, gt: {gt:20s}, {str(pred == gt)}\n')
valid_log = f'[{i}/{opt.num_iter}] valid loss: {valid_loss:0.5f}'
valid_log += f' accuracy: {current_accuracy:0.3f}, norm_ED: {current_norm_ED:0.2f}'
print(valid_log)
log.write(valid_log + '\n')
# keep best accuracy model
if current_accuracy > best_accuracy:
best_accuracy = current_accuracy
torch.save(
model.state_dict(),
f'./saved_models/{opt.experiment_name}/best_accuracy.pth'
)
if current_norm_ED < best_norm_ED:
best_norm_ED = current_norm_ED
torch.save(
model.state_dict(),
f'./saved_models/{opt.experiment_name}/best_norm_ED.pth'
)
best_model_log = f'best_accuracy: {best_accuracy:0.3f}, best_norm_ED: {best_norm_ED:0.2f}'
print(best_model_log)
log.write(best_model_log + '\n')
# save model per 1e+5 iter.
if (i + 1) % 1e+5 == 0:
torch.save(model.state_dict(),
f'./saved_models/{opt.experiment_name}/iter_{i+1}.pth')
if i == opt.num_iter:
print('end the training')
sys.exit()
i += 1
def demo(opt):
""" model configuration """
if 'CTC' in opt.Prediction:
converter = CTCLabelConverter(opt.character)
else:
converter = AttnLabelConverter(opt.character)
opt.num_class = len(converter.character)
if opt.rgb:
opt.input_channel = 3
model = Model(opt)
print('model input parameters', opt.imgH, opt.imgW, opt.num_fiducial,
opt.input_channel, opt.output_channel, opt.hidden_size,
opt.num_class, opt.batch_max_length, opt.Transformation,
opt.FeatureExtraction, opt.SequenceModeling, opt.Prediction)
model = torch.nn.DataParallel(model).to(device)
# model = model.to(device)
# load model
print('loading pretrained model from %s' % opt.saved_model)
model.load_state_dict(torch.load(opt.saved_model, map_location=device))
# model.load_state_dict(copy_state_dict(torch.load(opt.saved_model, map_location=device)))
# prepare data. two demo images from https://github.com/bgshih/crnn#run-demo
AlignCollate_demo = AlignCollate(imgH=opt.imgH,
imgW=opt.imgW,
keep_ratio_with_pad=opt.PAD)
demo_data = RawDataset(root=opt.image_folder, opt=opt) # use RawDataset
demo_loader = torch.utils.data.DataLoader(demo_data,
batch_size=opt.batch_size,
shuffle=False,
num_workers=int(opt.workers),
collate_fn=AlignCollate_demo,
pin_memory=True)
# predict
model.eval()
fail_count, sample_count = 0, 0
with torch.no_grad():
for image_tensors, image_path_list in demo_loader:
batch_size = image_tensors.size(0)
image = image_tensors.to(device)
# For max length prediction
length_for_pred = torch.IntTensor([opt.batch_max_length] *
batch_size).to(device)
text_for_pred = torch.LongTensor(batch_size, opt.batch_max_length +
1).fill_(0).to(device)
if 'CTC' in opt.Prediction:
preds = model(image, text_for_pred)
# Select max probabilty (greedy decoding) then decode index to character
preds_size = torch.IntTensor([preds.size(1)] * batch_size)
_, preds_index = preds.max(2)
# preds_index = preds_index.view(-1)
preds_str = converter.decode(preds_index, preds_size)
else:
preds = model(image, text_for_pred, is_train=False)
# select max probabilty (greedy decoding) then decode index to character
_, preds_index = preds.max(2)
preds_str = converter.decode(preds_index, length_for_pred)
log = open(f'./log_demo_result.txt', 'a')
dashed_line = '-' * 80
head = f'{"image_path":25s}\t{"predicted_labels":25s}\tconfidence score'
print(f'{dashed_line}\n{head}\n{dashed_line}')
log.write(f'{dashed_line}\n{head}\n{dashed_line}\n')
preds_prob = F.softmax(preds, dim=2)
preds_max_prob, _ = preds_prob.max(dim=2)
for img_name, pred, pred_max_prob in zip(image_path_list,
preds_str,
preds_max_prob):
if 'Attn' in opt.Prediction:
pred_EOS = pred.find('[s]')
pred = pred[:
pred_EOS] # prune after "end of sentence" token ([s])
pred_max_prob = pred_max_prob[:pred_EOS]
if pred_max_prob.shape[0] > 0:
# calculate confidence score (= multiply of pred_max_prob)
confidence_score = pred_max_prob.cumprod(dim=0)[-1]
else:
confidence_score = 0.0
gt = img_name.split('_L_')[1]
gt = gt.split('.')[0]
pred = pred.split('.')[0]
# if img_name.find('1_225427_L_대전출입국관리사무소_L_21.png') >=0 :
# print(f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}')
if gt.split('(')[0] != pred.split('(')[0]:
fail_count += 1
log.write(
f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}\n'
)
else:
print(
f'{img_name:25s}\t{pred:25s}\t{confidence_score:0.4f}')
pass
sample_count += 1
log.close()
print(f'total accuracy: {(sample_count-fail_count)/sample_count:.2f}')
