def main(filepath):
image = Image.open(r'images/' + filepath).convert('RGB')
image = transformer(image)
if torch.cuda.is_available() and cfg.use_gpu:
image = image.cuda()
image = image.view(1, *image.size())
image = torch.autograd.Variable(image)
encoder = crnn.Encoder(3, cfg.hidden_size)
# no dropout during inference
decoder = crnn.Decoder(cfg.hidden_size,
num_classes,
dropout_p=0.0,
max_length=cfg.max_width)
if torch.cuda.is_available() and cfg.use_gpu:
encoder = encoder.cuda()
decoder = decoder.cuda()
map_location = 'cuda'
else:
map_location = 'cpu'
encoder.load_state_dict(torch.load(cfg.encoder, map_location=map_location))
print('loading pretrained encoder models from {}.'.format(cfg.encoder))
decoder.load_state_dict(torch.load(cfg.decoder, map_location=map_location))
print('loading pretrained decoder models from {}.'.format(cfg.decoder))
encoder.eval()
decoder.eval()
encoder_out = encoder(image)
max_length = 20
decoder_input = torch.zeros(1).long()
decoder_hidden = decoder.initHidden(1)
if torch.cuda.is_available() and cfg.use_gpu:
decoder_input = decoder_input.cuda()
decoder_hidden = decoder_hidden.cuda()
words, prob = seq2seq_decode(encoder_out, decoder, decoder_input,
decoder_hidden, max_length)
with open('data.txt', 'a', encoding='utf-8') as f:
print(filepath + '，{0}'.format(words), file=f)
print('predict_string: {} => predict_probility: {}'.format(words, prob))
def main():
image = Image.open(cfg.img_path).convert('RGB')
image = transformer(image)
if torch.cuda.is_available() and cfg.use_gpu:
image = image.cuda()
image = image.view(1, *image.size()) # (1, *image.size()) # logic ???
image = torch.autograd.Variable(image)
encoder = crnn.Encoder(channel_size=3, hidden_size=cfg.hidden_size)
# no dropout during inference
decoder = crnn.Decoder(hidden_size=cfg.hidden_size, output_size=num_classes, dropout_p=0.0, max_length=cfg.max_width)
if torch.cuda.is_available() and cfg.use_gpu:
encoder = encoder.cuda()
decoder = decoder.cuda()
map_location = 'cuda'
else:
map_location = 'cpu'
encoder.load_state_dict(torch.load(cfg.encoder, map_location=map_location))
print('loading pretrained encoder models from {}.'.format(cfg.encoder))
decoder.load_state_dict(torch.load(cfg.decoder, map_location=map_location))
print('loading pretrained decoder models from {}.'.format(cfg.decoder))
encoder.eval()
decoder.eval()
encoder_out = encoder(image)
max_length = 20
decoder_input = torch.zeros(1).long() # char label
decoder_hidden = decoder.initHidden(batch_size=1)
if torch.cuda.is_available() and cfg.use_gpu:
decoder_input = decoder_input.cuda()
decoder_hidden = decoder_hidden.cuda()
words, prob = seq2seq_decode(encoder_out, decoder, decoder_input, decoder_hidden, max_length)
print('predict_string: {} => predict_probility: {}'.format(words, prob))
if args.cuda:
detect_net.load_state_dict(
copyStateDict(torch.load(args.trained_model)))
else:
detect_net.load_state_dict(
copyStateDict(torch.load(args.trained_model, map_location='cpu')))
if args.cuda:
detect_net = detect_net.cuda()
detect_net = torch.nn.DataParallel(detect_net)
cudnn.benchmark = False
detect_net.eval()
# load rec_net
encoder = crnn.Encoder(3, args.hidden_size)
# no dropout during inference
decoder = crnn.Decoder(args.hidden_size,
num_classes,
dropout_p=0.0,
max_length=args.max_width)
print(encoder)
print(decoder)
if torch.cuda.is_available() and args.use_gpu:
encoder = encoder.cuda()
decoder = decoder.cuda()
map_location = 'cuda'
else:
map_location = 'cpu'
encoder.load_state_dict(torch.load(args.encoder,
def main():
if not os.path.exists(cfg.model):
os.makedirs(cfg.model)
# create train dataset
train_dataset = dataset.TextLineDataset(text_line_file=cfg.train_list,
transform=None)
sampler = dataset.RandomSequentialSampler(train_dataset, cfg.batch_size)
train_loader = torch.utils.data.DataLoader(
train_dataset,
batch_size=cfg.batch_size,
shuffle=False,
sampler=sampler,
num_workers=int(cfg.num_workers),
collate_fn=dataset.AlignCollate(img_height=cfg.img_height,
img_width=cfg.img_width))
# create test dataset
test_dataset = dataset.TextLineDataset(text_line_file=cfg.eval_list,
transform=dataset.ResizeNormalize(
img_width=cfg.img_width,
img_height=cfg.img_height))
test_loader = torch.utils.data.DataLoader(test_dataset,
shuffle=False,
batch_size=1,
num_workers=int(cfg.num_workers))
# create crnn/seq2seq/attention network
encoder = crnn.Encoder(channel_size=3, hidden_size=cfg.hidden_size)
# for prediction of an indefinite long sequence
decoder = crnn.Decoder(hidden_size=cfg.hidden_size,
output_size=num_classes,
dropout_p=0.1,
max_length=cfg.max_width)
print(encoder)
print(decoder)
encoder.apply(utils.weights_init)
decoder.apply(utils.weights_init)
if cfg.encoder:
print('loading pretrained encoder model from %s' % cfg.encoder)
encoder.load_state_dict(torch.load(cfg.encoder))
if cfg.decoder:
print('loading pretrained encoder model from %s' % cfg.decoder)
decoder.load_state_dict(torch.load(cfg.decoder))
# create input tensor
image = torch.FloatTensor(cfg.batch_size, 3, cfg.img_height, cfg.img_width)
text = torch.LongTensor(cfg.batch_size)
criterion = torch.nn.NLLLoss()
assert torch.cuda.is_available(
), "Please run \'train.py\' script on nvidia cuda devices."
encoder.cuda()
decoder.cuda()
image = image.cuda()
text = text.cuda()
criterion = criterion.cuda()
# train crnn
train(image,
text,
encoder,
decoder,
criterion,
train_loader,
teach_forcing_prob=cfg.teaching_forcing_prob)
# do evaluation after training
evaluate(image, text, encoder, decoder, test_loader, max_eval_iter=100)
