def get_band_cover(self, variables):
if utils.check_if_artist_cover_exists(variables):
print '[*] ' + variables.band_name + ' cover images already exists'
return
zune_root = 'http://catalog.zune.net/v3.2/en-US/music/artist'
response = requests.get(zune_root, params = { 'q': variables.band_name })
artist_cover_path = os.path.join(variables.dirs.artists_cover,
str(variables.band_id)) + '.jpg'
if response.status_code == 200:
xml_tree = ElementTree.fromstring(response.content)
# Namespace for XML
ns = { 'a': 'http://www.w3.org/2005/Atom',
'zune': 'http://schemas.zune.net/catalog/music/2007/10' }
try:
uuid = xml_tree.find('a:entry', ns).find('a:id', ns).text[9:]
except Exception as e:
self.get_band_cover_from_lastfm(variables)
return
response = requests.get(zune_root + '/' + uuid + '/images')
xml_tree = ElementTree.fromstring(response.content)
entries = xml_tree.findall('a:entry', ns)
width = 0
url = None
# Get widest length cover pic
for e in entries:
instance = e.find('zune:instances', ns).find('zune:imageInstance', ns)
url = instance.find('zune:url', ns).text
break
if not url:
self.get_band_cover_from_lastfm(variables)
return
utils.save_image(url, artist_cover_path)
print '[+] Added ' + variables.band_name + ' cover'
def stylize(args):
img_list=os.listdir(args.content_image)
epoch_name=os.path.basename(args.model).split('.')[0]
experiment_name=os.path.dirname(args.output_image)
if not os.path.exists(experiment_name):
os.system('mkdir {}'.format(experiment_name))
if not os.path.exists(args.output_image):
os.system('mkdir {}'.format(args.output_image))
for img in img_list:
if is_image_file(img):
content_image = utils.load_image(os.path.join(args.content_image,img), scale=args.content_scale)
content_image=content_image.convert('RGB')
content_transform = transforms.Compose([
transforms.ToTensor(),
transforms.Lambda(lambda x: x.mul(255))
])
content_image = content_transform(content_image)
content_image = content_image.unsqueeze(0)
if args.cuda:
content_image = content_image.cuda()
content_image = Variable(content_image, volatile=True)
style_model = TransformerNet()
style_model.load_state_dict(torch.load(args.model))
if args.cuda:
style_model.cuda()
output = style_model(content_image)
if args.cuda:
output = output.cpu()
content_image=content_image.cpu()
output_data = output.data[0]
content_image_data=content_image.data[0]
output_data=torch.cat([content_image_data,output_data],2)
output_name=os.path.join(args.output_image,epoch_name+"_result_"+img)
utils.save_image(output_name, output_data)
def save_images(webpage, visuals, image_path, aspect_ratio=1.0, width=256):
"""Save images to the disk.
Parameters:
webpage (the HTML class) -- the HTML webpage class that stores these imaegs (see html.py for more details)
visuals (OrderedDict) -- an ordered dictionary that stores (name, images (either tensor or numpy) ) pairs
image_path (str) -- the string is used to create image paths
aspect_ratio (float) -- the aspect ratio of saved images
width (int) -- the images will be resized to width x width
This function will save images stored in 'visuals' to the HTML file specified by 'webpage'.
"""
image_dir = webpage.get_image_dir()
short_path = ntpath.basename(image_path[0])
name = os.path.splitext(short_path)[0]
webpage.add_header(name)
ims, txts, links = [], [], []
for label, im_data in visuals.items():
im = util.tensor2im(im_data)
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(image_dir, image_name)
util.save_image(im, save_path, aspect_ratio=aspect_ratio)
ims.append(image_name)
txts.append(label)
links.append(image_name)
webpage.add_images(ims, txts, links, width=width)
def test(self,
session,
step,
summary_writer=None,
print_rate=1,
sample_dir=None,
meta=None):
feed_dict, original_sequence = self.get_feed_dict_and_orig(session)
g_loss_pure, g_reg, d_loss_val, d_pen, rmse_temp, rmse_cc, rmse_sh, rmse_sp, rmse_geo, summary = session.run(
[
self.g_cost_pure, self.gen_reg, self.d_cost, self.d_penalty,
self.rmse_temp, self.rmse_cc, self.rmse_sh, self.rmse_sp,
self.rmse_geo, self.summary_op
],
feed_dict=feed_dict)
summary_writer.add_summary(summary, step)
original_sequence = original_sequence.reshape([
1, self.frame_size, self.crop_size, self.crop_size, self.channels
])
# print(original_sequence.shape)
# images = zero state of weather
# generate forecast from state zero
forecast = session.run(self.sample, feed_dict=feed_dict)
# return all rmse-s
denorm_original_sequence = denormalize(original_sequence, self.wvars,
self.crop_size, self.frame_size,
self.channels, meta)
denorm_forecast = denormalize(forecast, self.wvars, self.crop_size,
self.frame_size, self.channels, meta)
diff = []
for orig, gen in zip(denorm_original_sequence, denorm_forecast):
dif = orig - gen
diff.append(dif[:, 1, :, :, :])
if step % print_rate == 0:
print(
"Step: %d, generator loss: (%g + %g), discriminator_loss: (%g + %g)"
% (step, g_loss_pure, g_reg, d_loss_val, d_pen))
print("RMSE - Temp: %g, CC: %g, SH: %g, SP: %g, Geo: %g" %
(rmse_temp, rmse_cc, rmse_sh, rmse_sp, rmse_geo))
print('saving original')
save_image(denorm_original_sequence, sample_dir,
'init_%d_image' % step)
print('saving forecast / fakes')
save_image(denorm_forecast, sample_dir, 'gen_%d_future' % step)
rmse_all = [rmse_temp, rmse_cc, rmse_sh, rmse_sp, rmse_geo]
costs = [g_loss_pure, g_reg, d_loss_val, d_pen]
return rmse_all, costs, diff
def thread_function(input_image, width, height, out_path):
image = utils.read_image(input_image)
if resize_images is not None:
image = utils.resize_image(image, width, height)
# remove all backgrounds
if should_remove_backgrounds:
image = utils.remove_background(image)
utils.save_image(out_path, image)
def get_band_cover_from_lastfm(self, variables):
print ' [+] Cover pic not found in Zune, trying to fetch from lastfm'
artist_object = variables.network.get_artist(variables.band_name)
artist_id = str(variables.band_id)
# Save the artist thumbnails
artist_cover_path = os.path.join(variables.dirs.artists_cover, artist_id)+'.jpg'
# Note the size argument which returns the url for a smaller image
try:
utils.save_image(artist_object.get_cover_image(), artist_cover_path)
except Exception as e:
print "[-] Exception while fetching %s's cover pic: %s"%(variables.band_name,e.message)
return
print "[+] Added %s's cover"%(variables.band_name)
def evaluate(self, epoch, step, counter, val_data_iterator):
print("Running evaluation after epoch:{:02d} and step:{:04d} ".format(
epoch, step))
# evaluate reconstruction loss
start_eval_batch = 0
reconstructed_images = []
num_eval_batches = val_data_iterator.get_num_samples(
"val") // self.batch_size
for _idx in range(start_eval_batch, num_eval_batches):
batch_eval_images, batch_eval_labels, manual_labels = val_data_iterator.get_next_batch(
"val")
integer_label = np.asarray([
np.where(r == 1)[0][0] for r in batch_eval_labels
]).reshape([64, 1])
batch_eval_labels = np.concatenate(
[batch_eval_labels, integer_label], axis=1)
columns = [str(i) for i in range(10)]
columns.append("label")
pd.DataFrame(batch_eval_labels,
columns=columns)\
.to_csv(self.result_dir + "label_test_{:02d}.csv".format(_idx),
index=False)
batch_z = prior.gaussian(self.batch_size, self.z_dim)
reconstructed_image, summary = self.sess.run(
[self.out, self.merged_summary_op],
feed_dict={
self.inputs: batch_eval_images,
self.labels: manual_labels[:, :10],
self.is_manual_annotated: manual_labels[:, 10],
self.standard_normal: batch_z
})
self.writer_v.add_summary(summary, counter)
manifold_w = 4
tot_num_samples = min(self.sample_num, self.batch_size)
manifold_h = tot_num_samples // manifold_w
reconstructed_images.append(
reconstructed_image[:manifold_h * manifold_w, :, :, :])
print("epoch:{} step:{}".format(epoch, step))
reconstructed_dir = get_eval_result_dir(self.result_dir, epoch, step)
print(reconstructed_dir)
for _idx in range(start_eval_batch, num_eval_batches):
file = "im_" + str(_idx) + ".png"
save_image(reconstructed_images[_idx], [manifold_h, manifold_w],
reconstructed_dir + file)
val_data_iterator.reset_counter("val")
print("Evaluation completed")
def get_album_thumbnail(self, variables):
if utils.check_if_album_thumbnail_exists(variables):
print '[*] ' + variables.album_name + ' thumbnail already exists'
return
album_object = variables.network.get_album(variables.band_name, variables.album_name)
album_id = str(variables.album_id)
album_image_path = os.path.join(variables.dirs.albums_thumbnail, album_id)+'.jpg'
try:
album_cover_image_url = album_object.get_cover_image()
utils.save_image(album_cover_image_url, album_image_path)
except Exception as e:
print "[-] Exception while fetching %s's thumbnail:%s"%(variables.album_name,e.message)
return
print '[+] Added ' + variables.album_name + ' thumbnail'
def get_band_thumbnail(self, variables):
if utils.check_if_artist_thumbnail_exists(variables):
print '[*] ' + variables.band_name + ' thumbnail already exists'
return
artist_object = variables.network.get_artist(variables.band_name)
artist_id = str(variables.band_id)
# Save the artist thumbnails
artist_thumbnail_path = os.path.join(variables.dirs.artist_thumbnail, artist_id)+'.jpg'
# Note the size argument which returns the url for a smaller image
try:
utils.save_image(artist_object.get_cover_image(size=2), artist_thumbnail_path)
except Exception as e:
print "[-] Exception while fetching %s's thumbnail: %s"%(variables.band_name,e.message)
return
print '[+] Added ' + variables.band_name + ' thumbnail'
def generate(
cfg,
model: torch.nn.Module,
data_loader: torch.utils.data.DataLoader,
device: torch.device,
logger=None,
*args,
**kwargs,
):
model.eval()
total_loss = []
with utils.log_info(msg="Generate results", level="INFO", state=True, logger=logger):
pbar = tqdm(total=len(data_loader), dynamic_ncols=True)
for idx, data in enumerate(data_loader):
start_time = time.time()
output, *_ = utils.inference(model=model, data=data, device=device)
for i in range(output.shape[0]):
save_dir = os.path.join(cfg.SAVE.DIR, "results")
if not os.path.exists(save_dir):
os.makedirs(save_dir)
path2file = os.path.join(save_dir, data["img_idx"][i]+".png")
succeed = utils.save_image(output[i].detach().cpu().numpy(), cfg.DATA.MEAN, cfg.DATA.NORM, path2file)
if not succeed:
utils.notify("Cannot save image to {}".format(path2file))
pbar.update()
pbar.close()
def generate(
cfg,
model: torch.nn.Module,
data_loader: torch.utils.data.DataLoader,
device: torch.device,
phase,
logger=None,
*args,
**kwargs,
):
model.eval()
# Prepare to log info.
log_info = print if logger is None else logger.log_info
total_loss = []
inference_time = []
# Read data and evaluate and record info.
with utils.log_info(msg="Generate results", level="INFO", state=True, logger=logger):
pbar = tqdm(total=len(data_loader), dynamic_ncols=True)
for idx, data in enumerate(data_loader):
start_time = time.time()
output = utils.inference(model=model, data=data, device=device)
inference_time.append(time.time()-start_time)
for i in range(output.shape[0]):
save_dir = os.path.join(cfg.SAVE.DIR, phase)
if not os.path.exists(save_dir):
os.makedirs(save_dir)
path2file = os.path.join(save_dir, data["img_idx"][i]+"_g.png")
succeed = utils.save_image(output[i].detach().cpu().numpy(), cfg.DATA.MEAN, cfg.DATA.NORM, path2file)
if not succeed:
log_info("Cannot save image to {}".format(path2file))
pbar.update()
pbar.close()
log_info("Runtime per image: {:<5} seconds.".format(round(sum(inference_time)/len(inference_time), 4)))
def train(self,
session,
step,
summary_writer=None,
log_summary=False,
sample_dir=None,
generate_sample=False,
meta=None):
if log_summary:
start_time = time.time()
critic_itrs = self.critic_iterations
for critic_itr in range(critic_itrs):
session.run(self.d_adam, feed_dict=self.get_feed_dict(session))
feed_dict = self.get_feed_dict(session)
session.run(self.g_adam_gan, feed_dict=feed_dict)
session.run(self.g_adam_first, feed_dict=feed_dict)
if log_summary:
g_loss_pure, g_reg, d_loss_val, d_pen, rmse_temp, rmse_cc, rmse_sh, rmse_sp, rmse_geo, fake_min, fake_max, summary = session.run(
[self.g_cost_pure, self.gen_reg, self.d_cost, self.d_penalty, self.rmse_temp, self.rmse_cc, self.rmse_sh, self.rmse_sp, self.rmse_geo, self.fake_min, self.fake_max, self.summary_op],
feed_dict=feed_dict)
summary_writer.add_summary(summary, step)
print("Time: %g/itr, Step: %d, generator loss: (%g + %g), discriminator_loss: (%g + %g)" % (
time.time() - start_time, step, g_loss_pure, g_reg, d_loss_val, d_pen))
print("RMSE - Temp: %g, CC: %g, SH: %g, SP: %g, Geo: %g" % (rmse_temp, rmse_cc, rmse_sh, rmse_sp, rmse_geo))
print("Fake_vid min: %g, max: %g" % (fake_min, fake_max))
if generate_sample:
original_sequence = session.run(self.videos)
original_sequence = original_sequence.reshape([self.batch_size, self.frame_size, self.crop_size, self.crop_size, self.channels])
print(original_sequence.shape)
# images = zero state of weather
images = original_sequence[:,0,:,:,:]
# generate forecast from state zero
forecast = session.run(self.sample, feed_dict={self.input_images: images})
original_sequence = denormalize(original_sequence, self.wvars, self.crop_size, self.frame_size, self.channels, meta)
print('saving original')
save_image(original_sequence, sample_dir, 'init_%d_image' % step)
forecast = denormalize(forecast, self.wvars, self.crop_size, self.frame_size, self.channels, meta)
print('saving forecast / fakes')
save_image(forecast, sample_dir, 'gen_%d_future' % step)
def save_images(self, webpage, visuals, image_path):
image_dir = webpage.get_image_dir()
short_path = ntpath.basename(image_path[0])
name = os.path.splitext(short_path)[0]
webpage.add_header(name)
ims = []
txts = []
links = []
for label, image_numpy in visuals.items():
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(image_dir, image_name)
utils.save_image(image_numpy, save_path)
ims.append(image_name)
txts.append(label)
links.append(image_name)
webpage.add_images(ims, txts, links, width=self.win_size)
def save_images(self, webpage, visuals, image_path):
image_dir = webpage.get_image_dir()
short_path = ntpath.basename(image_path[0])
name = os.path.splitext(short_path)[0]
webpage.add_header(name)
ims = []
txts = []
links = []
for label, image_numpy in visuals.items():
image_name = '%s_%s.png' % (name, label)
save_path = os.path.join(image_dir, image_name)
utils.save_image(image_numpy, save_path)
ims.append(image_name)
txts.append(label)
links.append(image_name)
webpage.add_images(ims, txts, links, width=self.win_size)
def evaluate(
epoch: int,
cfg,
model: torch.nn.Module,
data_loader: torch.utils.data.DataLoader,
device: torch.device,
loss_fn,
metrics_logger,
phase="valid",
logger=None,
save=False,
*args,
**kwargs,
):
model.eval()
# Prepare to log info.
log_info = print if logger is None else logger.log_info
total_loss = []
inference_time = []
# Read data and evaluate and record info.
with utils.log_info(msg="{} at epoch: {}".format(phase.upper(), str(epoch).zfill(3)), level="INFO", state=True, logger=logger):
# log_info("Will{}save results to {}".format(" " if save else " not ", cfg.SAVE.DIR))
pbar = tqdm(total=len(data_loader), dynamic_ncols=True)
for idx, data in enumerate(data_loader):
start_time = time.time()
out, loss = utils.inference_and_cal_loss(model=model, data=data, loss_fn=loss_fn, device=device)
inference_time.append(time.time()-start_time)
total_loss.append(loss.detach().cpu().item())
if save:
# Save results to directory.
for i in range(out.shape[0]):
save_dir = os.path.join(cfg.SAVE.DIR, phase)
if not os.path.exists(save_dir):
os.makedirs(save_dir)
path2file = os.path.join(save_dir, data["img_idx"][i]+"_g.png")
succeed = utils.save_image(out[i].detach().cpu().numpy(), cfg.DATA.MEAN, cfg.DATA.NORM, path2file)
if not succeed:
log_info("Cannot save image to {}".format(path2file))
metrics_logger.record(phase, epoch, "loss", loss.detach().cpu().item())
output = out.detach().cpu()
target = data["target"]
utils.cal_and_record_metrics(phase, epoch, output, target, metrics_logger, logger=logger)
pbar.set_description("Epoch: {:<3}, avg loss: {:<5}, cur loss: {:<5}".format(epoch, round(sum(total_loss)/len(total_loss), 5), round(total_loss[-1], 5)))
pbar.update()
pbar.close()
log_info("Runtime per image: {:<5} seconds.".format(round(sum(inference_time)/len(inference_time), 4)))
mean_metrics = metrics_logger.mean(phase, epoch)
log_info("SSIM: {:<5}, PSNR: {:<5}, MAE: {:<5}, Loss: {:<5}".format(
mean_metrics["SSIM"], mean_metrics["PSNR"], mean_metrics["MAE"], mean_metrics["loss"],
))
def stylize(content_image, style):
device = torch.device("cpu")
content_transform = transforms.Compose([
transforms.ToTensor()
# transforms.Lambda(lambda x: x.mul(255))
])
content_image = content_transform(content_image)
content_image = content_image.unsqueeze(0).to(device)
with torch.no_grad():
style_model = TransformerNet()
state_dict = torch.load("./saved_models/" + style)
# remove saved deprecated running_* keys in InstanceNorm from the checkpoint
for k in list(state_dict.keys()):
if re.search(r'in\d+\.running_(mean|var)$', k):
del state_dict[k]
style_model.load_state_dict(state_dict)
style_model.to(device)
output = style_model(content_image).cpu()
utils.save_image("./style/static/style-sample-images/temp.jpg",
output[0])
return output[0]
def test(test_loader, model, device, args):
test_psnr = AverageMeter('PSNR')
test_ssim = AverageMeter('SSIM')
model.eval()
with torch.no_grad():
for i, (input, label) in enumerate(test_loader, 1):
blur1, blur2, blur3 = input
sharp1, sharp2, sharp3 = label
blur1, blur2, blur3 = blur1.to(device), blur2.to(device), blur3.to(device)
sharp1, sharp2, sharp3 = sharp1.to(device), sharp2.to(device), sharp3.to(device)
pred1, _, _ = model(blur1, blur2, blur3)
sharp1 = sharp1.detach().clone().cpu().numpy().squeeze().transpose(1, 2, 0)
pred1 = pred1.detach().clone().cpu().numpy().squeeze().transpose(1, 2, 0)
blur1 = blur1.detach().clone().cpu().numpy().squeeze().transpose(1, 2, 0)
sharp1 += 0.5
pred1 += 0.5
blur1 += 0.5
psnr = peak_signal_noise_ratio(
sharp1, pred1,
data_range=1.
)
ssim = structural_similarity(
sharp1, pred1,
multichannel=True,
gaussian_weights=True,
use_sample_covariance=False,
data_range=1.
)
test_psnr.update(psnr)
test_ssim.update(ssim)
print('{:d}/{:d} | PSNR (dB) {:.2f} | SSIM {:.4f}'.format(i, len(test_loader), psnr, ssim))
save_image(sharp1, os.path.join(args.save_dir, '{:d}_sharp.png'.format(i)))
save_image(blur1, os.path.join(args.save_dir, '{:d}_blur.png'.format(i)))
save_image(pred1, os.path.join(args.save_dir, '{:d}_pred.png'.format(i)))
print('>> Avg PSNR, SSIM: {:.2f}, {:.2f}'.format(test_psnr.avg, test_ssim.avg))
def thread_function(input_image, width, height, out_path):
image = utils.read_image(input_image)
image = utils.resize_image(image, width, height)
utils.save_image(out_path, image)
def main(data_dir):
# 0) Tensoboard Writer.
writer = SummaryWriter(FLAGS['summary_path'])
origin_img, uv_map_gt, uv_map_predicted = None, None, None
# 1) Create Dataset of 300_WLP.
train_data_dir = [
'/home/beitadoge/Github/PRNet_PyTorch/Data/PRNet_PyTorch_Data/300WLP_AFW_HELEN_LFPW',
'/home/beitadoge/Github/PRNet_PyTorch/Data/PRNet_PyTorch_Data/300WLP_AFW_HELEN_LFPW_Flip',
'/home/beitadoge/Github/PRNet_PyTorch/Data/PRNet_PyTorch_Data/300WLP_IBUG_Src_Flip'
]
wlp300 = PRNetDataset(root_dir=train_data_dir,
transform=transforms.Compose([
ToTensor(),
ToNormalize(FLAGS["normalize_mean"],
FLAGS["normalize_std"])
]))
# 2) Create DataLoader.
wlp300_dataloader = DataLoaderX(dataset=wlp300,
batch_size=FLAGS['batch_size'],
shuffle=True,
num_workers=4)
# 3) Create PRNet model.
start_epoch, target_epoch = FLAGS['start_epoch'], FLAGS['target_epoch']
model = ResFCN256()
#GPU
if torch.cuda.device_count() > 1:
model = torch.nn.DataParallel(model)
model.to("cuda")
#Optimizer
optimizer = torch.optim.Adam(model.parameters(),
lr=FLAGS["lr"],
betas=(0.5, 0.999))
# scheduler_MultiStepLR = torch.optim.lr_scheduler.MultiStepLR(optimizer,[11],gamma=0.5, last_epoch=-1)
scheduler = torch.optim.lr_scheduler.ReduceLROnPlateau(optimizer,
mode='min',
factor=0.1,
patience=5,
min_lr=1e-6,
verbose=False)
# scheduler = torch.optim.lr_scheduler.ExponentialLR(optimizer, gamma=0.99)
# scheduler_StepLR = torch.optim.lr_scheduler.StepLR(optimizer,step_size=5,gamma=0.5, last_epoch=-1)
#apex混合精度训练
# from apex import amp
# model , optimizer = amp.initialize(model,optimizer,opt_level="O1",verbosity=0)
#Loss
stat_loss = SSIM(mask_path=FLAGS["mask_path"], gauss=FLAGS["gauss_kernel"])
loss = WeightMaskLoss(mask_path=FLAGS["mask_path"])
# Load the pre-trained weight
if FLAGS['resume'] and os.path.exists(
os.path.join(FLAGS['model_path'], "latest.pth")):
state = torch.load(os.path.join(
FLAGS['model_path'],
"latest.pth")) #这是个字典,keys: ['prnet', 'Loss', 'start_epoch']
model.load_state_dict(state['prnet'])
optimizer.load_state_dict(state['optimizer'])
# amp.load_state_dict(state['amp'])
start_epoch = state['start_epoch']
INFO("Load the pre-trained weight! Start from Epoch", start_epoch)
else:
start_epoch = 0
INFO(
"Pre-trained weight cannot load successfully, train from scratch!")
#Tensorboard
model_input = torch.rand(FLAGS['batch_size'], 3, 256, 256)
writer.add_graph = (model, model_input)
nme_mean = 999
for ep in range(start_epoch, target_epoch):
bar = tqdm(wlp300_dataloader)
Loss_list, Stat_list = deque(maxlen=len(bar)), deque(maxlen=len(bar))
model.train()
for i, sample in enumerate(bar):
uv_map, origin = sample['uv_map'].to(
FLAGS['device']), sample['origin'].to(FLAGS['device'])
# Inference.
uv_map_result = model(origin)
# Loss & ssim stat.
logit_loss = loss(uv_map_result, uv_map)
stat_logit = stat_loss(uv_map_result, uv_map)
# Record Loss.
Loss_list.append(logit_loss.item())
Stat_list.append(stat_logit.item())
# Update.
optimizer.zero_grad()
logit_loss.backward()
# with amp.scale_loss(logit_loss,optimizer) as scaled_loss:
# scaled_loss.backward()
optimizer.step()
lr = optimizer.param_groups[0]['lr']
bar.set_description(
" {} lr {} [Loss(Paper)] {:.5f} [SSIM({})] {:.5f}".format(
ep, lr, np.mean(Loss_list), FLAGS["gauss_kernel"],
np.mean(Stat_list)))
# Record Training information in Tensorboard.
# if origin_img is None and uv_map_gt is None:
# origin_img, uv_map_gt = origin, uv_map
# uv_map_predicted = uv_map_result
#写入Tensorboard
# FLAGS["summary_step"] += 1
# if FLAGS["summary_step"] % 500 ==0:
# writer.add_scalar("Original Loss", Loss_list[-1], FLAGS["summary_step"])
# writer.add_scalar("SSIM Loss", Stat_list[-1], FLAGS["summary_step"])
# grid_1, grid_2, grid_3 = make_grid(origin_img, normalize=True), make_grid(uv_map_gt), make_grid(uv_map_predicted)
# writer.add_image('original', grid_1, FLAGS["summary_step"])
# writer.add_image('gt_uv_map', grid_2, FLAGS["summary_step"])
# writer.add_image('predicted_uv_map', grid_3, FLAGS["summary_step"])
# writer.add_graph(model, uv_map)
#每个epoch过后将Loss写入Tensorboard
loss_mean = np.mean(Loss_list)
writer.add_scalar("Original Loss", loss_mean, ep)
lr = optimizer.param_groups[0]['lr']
writer.add_scalar("lr", lr, ep)
# scheduler_StepLR.step()
scheduler.step(loss_mean)
del Loss_list
del Stat_list
#Test && Cal AFLW2000's NME
model.eval()
if ep % FLAGS["save_interval"] == 0:
with torch.no_grad():
nme_mean = cal_aflw2000_nme(
model, '/home/beitadoge/Data/PRNet_PyTorch_Data/AFLW2000')
print("NME IS {}".format(nme_mean))
writer.add_scalar("Aflw2000_nme", nme_mean, ep)
origin = cv2.imread("./test_data/obama_origin.jpg")
gt_uv_map = cv2.imread("./test_data/obama_uv_posmap.jpg")
origin, gt_uv_map = test_data_preprocess(
origin), test_data_preprocess(gt_uv_map)
origin_in = F.normalize(origin, FLAGS["normalize_mean"],
FLAGS["normalize_std"],
False).unsqueeze_(0)
pred_uv_map = model(origin_in).detach().cpu()
save_image(
[origin.cpu(),
gt_uv_map.unsqueeze_(0).cpu(), pred_uv_map],
os.path.join(FLAGS['model_path'],
str(ep) + '.png'),
nrow=1,
normalize=True)
# # Save model
# state = {
# 'prnet': model.state_dict(),
# 'Loss': Loss_list,
# 'start_epoch': ep,
# }
# torch.save(checkpoint, os.path.join(FLAGS['model_path'], 'epoch{}.pth'.format(ep)))
checkpoint = {
'model': model.state_dict(),
'optimizer': optimizer.state_dict(),
# 'amp': amp.state_dict(),
'start_epoch': ep
}
torch.save(checkpoint,
os.path.join(FLAGS['model_path'], 'lastest.pth'))
# adjust_learning_rate(lr , ep, optimizer)
# scheduler.step(nme_mean)
writer.close()
from utils.foreground_background import estimate_foreground_background
from utils.utils import save_image, show_image, stack_alpha
import matplotlib.pyplot as plt
if __name__ == '__main__':
file_name = 'elephant.png'
alpha_sub_dir = 'test/Trimap1/'
alpha_dir = './out/'
image_dir = './data/input_lowres/'
out_dir = './out/cut_out/'
image = plt.imread(image_dir + file_name)
alpha = plt.imread(alpha_dir + alpha_sub_dir + file_name)
foreground, background = estimate_foreground_background(image,
alpha,
print_info=True)
# Make new image from foreground and alpha
cutout = stack_alpha(foreground, alpha)
# save
save_image(cutout, out_dir + alpha_sub_dir, file_name)
# show
# show_image(cutout)
def main_generate_datapoints():
r"""
Run the main script to generate the dataset. The output of generate_bins.py should be existing in ./raw/bins.pickle
:return:
"""
start_time = time.time()
datasets = [defaultdict(dict), defaultdict(dict), defaultdict(dict), defaultdict(dict)]
bins_dict, (N_X_BINS, N_Y_BINS) = pickle.load(open(f"raw/bins.pickle", "rb")) # load pre-generated bins of road segment
tot_count = 0 # number of datapoints proposal explored
count = 0 # number of accepted datapoints
count_split = [0, 0, 0] # number of accepted datapoints per split
count_augment = 0 # number of accepted datapoints when using rotate and flip augmentation
this_square = Square(0., 0., 0., 0.) # square object representing the current datapoint's coordinates
# to generate the default dataset we use translation augmentation of factor x4 for both x and y dimensions
for cx in np.arange(GLOBAL_MIN.x + STEP, GLOBAL_MAX.x - STEP, STEP / 4):
if tot_count % 100 == 0:
# log progress every now and then
print(f"{int(100 * tot_count / N_POSSIBLE_DATAPOINTS)}%,"
f" {int(time.time() - start_time)}s, x={cx}/{GLOBAL_X_MAX} \t accepted:{count} / proposed:{tot_count}")
# approximate to 5 decimals to avoid numerical instabilities,
# convert coordinate to bin index and update Square representation
cx = round(cx, 5)
cx_idx = to_x_idx(cx)
this_square.left = cx - (STEP / 2)
this_square.right = cx + (STEP / 2)
for cy in np.arange(GLOBAL_Y_MIN + STEP, GLOBAL_Y_MAX - STEP, STEP / 4):
# get split for this map tile
this_split = check_split(cx, cy)
# check if square is in the conflict area between two splits, then skip datapoint
if this_split == -1:
continue
# approximate to 5 decimals to avoid numerical instabilities,
# convert coordinate to bin index and update Square representation
tot_count += 1
cy = round(cy, 5)
cy_idx = to_y_idx(cy)
this_square.up = cy + (STEP / 2)
this_square.down = cy - (STEP / 2)
this_point = Point(cx, cy)
this_bin = Bin(cx_idx, cy_idx)
# get all lines that could possibly intersect the current square from the bin where this data point lies
lines = get_possible_lines(this_bin)
# get only lines in this square, and handle lines intersecting the borders
valid_lines, valid_id_roads = get_valid_lines(lines, this_square)
# handle intersections by substituting intersecting lines with new lines terminating in the intersection
# point
valid_lines, valid_id_roads = handle_crossings(valid_lines, valid_id_roads)
# change data format to nodes(x, y), and edges(node_a, node_b)
nodes, edges = to_nodes_edges(valid_lines, valid_id_roads)
# merge duplicate nodes
nodes, edges, n_del = merge_duplicate_nodes(nodes, edges)
# merge consecutive (almost) straight lines
nodes, edges, n_del = merge_straight_lines(nodes, edges)
# normalize coordinates to [-1, +1]
nodes = normalize_coordinates(nodes, this_point)
# filter for graph size
if MIN_NUM_EDGES <= len(edges) <= MAX_NUM_EDGES and MIN_NUM_NODES <= len(nodes) <= MAX_NUM_NODES:
longest_road = max(Counter(valid_id_roads).values())
# optionally, filter out very long roads
if longest_road < 10:
# get graph representation with adjacency lists per every node_id
adj_lists = edges_to_adjacency_lists(edges)
# compute BFS, DFS in different formats
bfs_nodes, bfs_edges = generate_bfs(copy.deepcopy(nodes), adj_lists)
dfs_nodes, dfs_edges = generate_dfs(copy.deepcopy(nodes), adj_lists)
# plot DFS/BFS
# for k in range(1, len(dfs_edges) + 1):
# path_image = PATH_IMAGES[this_split] + "{:0>7d}_{}.png".format(count, k)
# save_image_bfs(square_origin, dfs_edges[:k], path_image, plot_nodes=True)
# plot network for current datapoint and save it
path_image = PATH_IMAGES[this_split] + "{:0>7d}.png".format(count)
save_image(nodes, edges, path_image)
"""
Optionally, plot the graphs before pre-processing or by coloring differently each road, and
higlighting nodes:
"""
# # a) save before preprocessing
# path_image2 = PATH_IMAGES[this_split] + "extra_plots/" + "{:0>7d}b.png".format(count)
# save_image_by_lines(this_square, valid_lines, path_image2, id_roads=valid_id_roads, plot_nodes=True)
# # b) save with colored edges and nodes
# path_image3 = PATH_IMAGES[this_split] + "extra_plots/" + "{:0>7d}c.png".format(count)
# save_image_by_nodes_edges(UNIT_SQUARE, nodes, edges, path_image3, plot_nodes=True)
# generate the representation of this datapoint, and store it in its dataset split dictionary
current_dict = generate_datapoint(count, count, nodes, edges, adj_lists, bfs_edges, bfs_nodes,
dfs_edges, dfs_nodes, this_split, this_point)
datasets[this_split][count] = current_dict
# If this datapoint belongs to the training set, possibly augment with flip and rotation.
# Then, generate the datapoint and save the image with semantic segmentation.
# The type of augmentation used is stored as an attribute in data points in the augment split.
# if this_split == 0:
# nodes_list = augment(nodes)
# for id_augment, nodes in enumerate(nodes_list):
# # plot augmented datapoint
# path_image = PATH_IMAGES[3] + "{:0>7d}.png".format(count_augment)
# save_image(nodes, edges, path_image)
#
# # generate the representation of this datapoint,
# # and store it in its dataset split dictionary
# current_dict = generate_datapoint(count_augment, count, nodes, edges, adj_lists, bfs_edges,
# bfs_nodes, dfs_edges, dfs_nodes, 3, this_point,
# id_augment=id_augment)
# datasets[3][count_augment] = current_dict
# count_augment += 1
count += 1
count_split[this_split] += 1
# finally save all the splits in the generated dataset and plot the size of each
save_dataset(datasets, PATH_FILES)
print(
f"Final count: {count} | augmented: {count_augment} | count per split: {count_split} | squares explored: {tot_count}")
def save_test_images(self, idx):
save_image(tensor2im(self.real_A),
self.opt.img_save_path + f"/img_{idx:04d}_real_A.png")
save_image(tensor2im(self.rec_A),
self.opt.img_save_path + f"/img_{idx:04d}_rec_A.png")
save_image(tensor2im(self.fake_B),
self.opt.img_save_path + f"/img_{idx:04d}_trans_A2B.png")
save_image(tensor2im(self.real_B),
self.opt.img_save_path + f"/img_{idx:04d}_real_B.png")
save_image(tensor2im(self.rec_B),
self.opt.img_save_path + f"/img_{idx:04d}_rec_B.png")
save_image(tensor2im(self.fake_A),
self.opt.img_save_path + f"/img_{idx:04d}_trans_B2A.png")
def main(data_dir):
# 0) Tensoboard Writer.
writer = SummaryWriter(FLAGS['summary_path'])
origin_img, uv_map_gt, uv_map_predicted = None, None, None
if not os.path.exists(FLAGS['images']):
os.mkdir(FLAGS['images'])
# 1) Create Dataset of 300_WLP & Dataloader.
wlp300 = PRNetDataset(root_dir=data_dir,
transform=transforms.Compose([
ToTensor(),
ToNormalize(FLAGS["normalize_mean"],
FLAGS["normalize_std"])
]))
wlp300_dataloader = DataLoader(dataset=wlp300,
batch_size=FLAGS['batch_size'],
shuffle=True,
num_workers=4)
# 2) Intermediate Processing.
transform_img = transforms.Compose([
#transforms.ToTensor(),
transforms.Normalize(FLAGS["normalize_mean"], FLAGS["normalize_std"])
])
# 3) Create PRNet model.
start_epoch, target_epoch = FLAGS['start_epoch'], FLAGS['target_epoch']
model = ResFCN256()
discriminator = Discriminator1()
# Load the pre-trained weight
if FLAGS['resume'] and os.path.exists(
os.path.join(FLAGS['images'], "latest.pth")):
state = torch.load(os.path.join(FLAGS['images'], "latest.pth"))
model.load_state_dict(state['prnet'])
start_epoch = state['start_epoch']
INFO("Load the pre-trained weight! Start from Epoch", start_epoch)
else:
start_epoch = 0
INFO(
"Pre-trained weight cannot load successfully, train from scratch!")
if torch.cuda.device_count() > 1:
model = torch.nn.DataParallel(model)
model.to("cuda")
discriminator.to("cuda")
optimizer = torch.optim.Adam(model.parameters(),
lr=FLAGS["lr"],
betas=(0.5, 0.999))
optimizer_D = torch.optim.Adam(discriminator.parameters(), lr=FLAGS["lr"])
scheduler = torch.optim.lr_scheduler.ExponentialLR(optimizer, gamma=0.99)
stat_loss = SSIM(mask_path=FLAGS["mask_path"], gauss=FLAGS["gauss_kernel"])
loss = WeightMaskLoss(mask_path=FLAGS["mask_path"])
bce_loss = torch.nn.BCEWithLogitsLoss()
bce_loss.to("cuda")
#Loss function for adversarial
Tensor = torch.cuda.FloatTensor
for ep in range(start_epoch, target_epoch):
bar = tqdm(wlp300_dataloader)
Loss_list, Stat_list = [], []
Loss_list_D = []
for i, sample in enumerate(bar):
#drop the last batch
if i == 111:
break
# the dimension of the uv_map is 16 3 256 256 but the last sample is 10 3 256 256
uv_map, origin = sample['uv_map'].to(
FLAGS['device']), sample['origin'].to(FLAGS['device'])
# generate fake label
fake_label = Variable(torch.zeros([16, 512])).cuda()
# generate real lable
real_label = Variable(torch.ones([16, 512])).cuda()
# Sample noise as generator input
#z = Variable(Tensor(np.random.normal(0, 1,([16, 3, 256, 256]))))
# Inference.
uv_map_result = model(origin)
# Loss & ssim stat.
# Loss measures generator's ability to fool the discriminator
logit = bce_loss(discriminator(uv_map_result), real_label)
stat_logit = stat_loss(uv_map_result, uv_map)
# Measure discriminator's ability to classify real from generated samples
real_loss = bce_loss(discriminator(uv_map), real_label)
fake_loss = bce_loss(
discriminator(uv_map_result).detach(), fake_label)
d_loss = (real_loss + fake_loss) / 2
# Record Loss.
Loss_list.append(logit.item())
Loss_list_D.append(d_loss.item())
Stat_list.append(stat_logit.item())
# Update.
optimizer.zero_grad()
logit.backward()
optimizer.step()
bar.set_description(
" {} [Loss(Paper)] {} [Loss(D)] {} [SSIM({})] {}".format(
ep, Loss_list[-1], Loss_list_D[-1], FLAGS["gauss_kernel"],
Stat_list[-1]))
optimizer_D.zero_grad()
d_loss.backward(retain_graph=True)
optimizer_D.step()
# Record Training information in Tensorboard.
if origin_img is None and uv_map_gt is None:
origin_img, uv_map_gt = origin, uv_map
uv_map_predicted = uv_map_result
writer.add_scalar("Original Loss", Loss_list[-1],
FLAGS["summary_step"])
writer.add_scalar("D Loss", Loss_list_D[-1], FLAGS["summary_step"])
writer.add_scalar("SSIM Loss", Stat_list[-1],
FLAGS["summary_step"])
grid_1, grid_2, grid_3 = make_grid(
origin_img, normalize=True), make_grid(uv_map_gt), make_grid(
uv_map_predicted)
writer.add_image('original', grid_1, FLAGS["summary_step"])
writer.add_image('gt_uv_map', grid_2, FLAGS["summary_step"])
writer.add_image('predicted_uv_map', grid_3, FLAGS["summary_step"])
writer.add_graph(model, uv_map)
if ep % FLAGS["save_interval"] == 0:
with torch.no_grad():
origin = cv2.imread("./test_data/obama_origin.jpg")
gt_uv_map = np.load("./test_data/test_obama.npy")
origin, gt_uv_map = test_data_preprocess(
origin), test_data_preprocess(gt_uv_map)
origin, gt_uv_map = transform_img(origin), transform_img(
gt_uv_map)
origin_in = origin.unsqueeze_(0).cuda()
pred_uv_map = model(origin_in).detach().cpu()
save_image(
[origin.cpu(),
gt_uv_map.unsqueeze_(0).cpu(), pred_uv_map],
os.path.join(FLAGS['images'],
str(ep) + '.png'),
nrow=1,
normalize=True)
# Save model
print("Save model")
state = {
'prnet': model.state_dict(),
'Loss': Loss_list,
'start_epoch': ep,
'Loss_D': Loss_list_D,
}
torch.save(state, os.path.join(FLAGS['images'], 'latest.pth'))
scheduler.step()
writer.close()
def main(data_dir):
# 0) Tensoboard Writer.
writer = SummaryWriter(FLAGS['summary_path'])
origin_img, uv_map_gt, uv_map_predicted = None, None, None
if not os.path.exists(FLAGS['images']):
os.mkdir(FLAGS['images'])
# 1) Create Dataset of 300_WLP & Dataloader.
wlp300 = PRNetDataset(root_dir=data_dir,
transform=transforms.Compose([
ToTensor(),
ToResize((416, 416)),
ToNormalize(FLAGS["normalize_mean"],
FLAGS["normalize_std"])
]))
wlp300_dataloader = DataLoader(dataset=wlp300,
batch_size=FLAGS['batch_size'],
shuffle=True,
num_workers=1)
# 2) Intermediate Processing.
transform_img = transforms.Compose([
transforms.Normalize(FLAGS["normalize_mean"], FLAGS["normalize_std"])
])
# 3) Create PRNet model.
start_epoch, target_epoch = FLAGS['start_epoch'], FLAGS['target_epoch']
model = ResFCN256(resolution_input=416,
resolution_output=416,
channel=3,
size=16)
discriminator = Discriminator()
# Load the pre-trained weight
if FLAGS['resume'] != "" and os.path.exists(
os.path.join(FLAGS['pretrained'], FLAGS['resume'])):
state = torch.load(os.path.join(FLAGS['pretrained'], FLAGS['resume']))
model.load_state_dict(state['prnet'])
start_epoch = state['start_epoch']
INFO("Load the pre-trained weight! Start from Epoch", start_epoch)
else:
start_epoch = 0
INFO(
"Pre-trained weight cannot load successfully, train from scratch!")
if torch.cuda.device_count() > 1:
model = torch.nn.DataParallel(model)
model.to(FLAGS["device"])
discriminator.to(FLAGS["device"])
optimizer = torch.optim.Adam(model.parameters(),
lr=FLAGS["lr"],
betas=(0.5, 0.999))
optimizer_D = torch.optim.Adam(discriminator.parameters(), lr=FLAGS["lr"])
scheduler = torch.optim.lr_scheduler.ExponentialLR(optimizer, gamma=0.99)
stat_loss = SSIM(mask_path=FLAGS["mask_path"], gauss=FLAGS["gauss_kernel"])
loss = WeightMaskLoss(mask_path=FLAGS["mask_path"])
bce_loss = torch.nn.BCEWithLogitsLoss()
bce_loss.to(FLAGS["device"])
#Loss function for adversarial
for ep in range(start_epoch, target_epoch):
bar = tqdm(wlp300_dataloader)
loss_list_G, stat_list = [], []
loss_list_D = []
for i, sample in enumerate(bar):
uv_map, origin = sample['uv_map'].to(
FLAGS['device']), sample['origin'].to(FLAGS['device'])
# Inference.
optimizer.zero_grad()
uv_map_result = model(origin)
# Update D
optimizer_D.zero_grad()
fake_detach = uv_map_result.detach()
d_fake = discriminator(fake_detach)
d_real = discriminator(uv_map)
retain_graph = False
if FLAGS['gan_type'] == 'GAN':
loss_d = bce_loss(d_real, d_fake)
elif FLAGS['gan_type'].find('WGAN') >= 0:
loss_d = (d_fake - d_real).mean()
if FLAGS['gan_type'].find('GP') >= 0:
epsilon = torch.rand(fake_detach.shape[0]).view(
-1, 1, 1, 1)
epsilon = epsilon.to(fake_detach.device)
hat = fake_detach.mul(1 - epsilon) + uv_map.mul(epsilon)
hat.requires_grad = True
d_hat = discriminator(hat)
gradients = torch.autograd.grad(outputs=d_hat.sum(),
inputs=hat,
retain_graph=True,
create_graph=True,
only_inputs=True)[0]
gradients = gradients.view(gradients.size(0), -1)
gradient_norm = gradients.norm(2, dim=1)
gradient_penalty = 10 * gradient_norm.sub(1).pow(2).mean()
loss_d += gradient_penalty
# from ESRGAN: Enhanced Super-Resolution Generative Adversarial Networks
elif FLAGS['gan_type'] == 'RGAN':
better_real = d_real - d_fake.mean(dim=0, keepdim=True)
better_fake = d_fake - d_real.mean(dim=0, keepdim=True)
loss_d = bce_loss(better_real, better_fake)
retain_graph = True
if discriminator.training:
loss_list_D.append(loss_d.item())
loss_d.backward(retain_graph=retain_graph)
optimizer_D.step()
if 'WGAN' in FLAGS['gan_type']:
for p in discriminator.parameters():
p.data.clamp_(-1, 1)
# Update G
d_fake_bp = discriminator(
uv_map_result) # for backpropagation, use fake as it is
if FLAGS['gan_type'] == 'GAN':
label_real = torch.ones_like(d_fake_bp)
loss_g = bce_loss(d_fake_bp, label_real)
elif FLAGS['gan_type'].find('WGAN') >= 0:
loss_g = -d_fake_bp.mean()
elif FLAGS['gan_type'] == 'RGAN':
better_real = d_real - d_fake_bp.mean(dim=0, keepdim=True)
better_fake = d_fake_bp - d_real.mean(dim=0, keepdim=True)
loss_g = bce_loss(better_fake, better_real)
loss_g.backward()
loss_list_G.append(loss_g.item())
optimizer.step()
stat_logit = stat_loss(uv_map_result, uv_map)
stat_list.append(stat_logit.item())
#bar.set_description(" {} [Loss(Paper)] {} [Loss(D)] {} [SSIM({})] {}".format(ep, loss_list_G[-1], loss_list_D[-1],FLAGS["gauss_kernel"], stat_list[-1]))
# Record Training information in Tensorboard.
"""
if origin_img is None and uv_map_gt is None:
origin_img, uv_map_gt = origin, uv_map
uv_map_predicted = uv_map_result
writer.add_scalar("Original Loss", loss_list_G[-1], FLAGS["summary_step"])
writer.add_scalar("D Loss", loss_list_D[-1], FLAGS["summary_step"])
writer.add_scalar("SSIM Loss", stat_list[-1], FLAGS["summary_step"])
grid_1, grid_2, grid_3 = make_grid(origin_img, normalize=True), make_grid(uv_map_gt), make_grid(uv_map_predicted)
writer.add_image('original', grid_1, FLAGS["summary_step"])
writer.add_image('gt_uv_map', grid_2, FLAGS["summary_step"])
writer.add_image('predicted_uv_map', grid_3, FLAGS["summary_step"])
writer.add_graph(model, uv_map)
"""
if ep % FLAGS["save_interval"] == 0:
with torch.no_grad():
print(" {} [Loss(Paper)] {} [Loss(D)] {} [SSIM({})] {}".format(
ep, loss_list_G[-1], loss_list_D[-1],
FLAGS["gauss_kernel"], stat_list[-1]))
origin = cv2.imread("./test_data/obama_origin.jpg")
gt_uv_map = np.load("./test_data/test_obama.npy")
origin, gt_uv_map = test_data_preprocess(
origin), test_data_preprocess(gt_uv_map)
origin, gt_uv_map = transform_img(origin), transform_img(
gt_uv_map)
origin_in = origin.unsqueeze_(0).cuda()
pred_uv_map = model(origin_in).detach().cpu()
save_image(
[origin.cpu(),
gt_uv_map.unsqueeze_(0).cpu(), pred_uv_map],
os.path.join(FLAGS['images'],
str(ep) + '.png'),
nrow=1,
normalize=True)
# Save model
print("Save model")
state = {
'prnet': model.state_dict(),
'Loss': loss_list_G,
'start_epoch': ep,
'Loss_D': loss_list_D,
}
torch.save(state, os.path.join(FLAGS['images'],
'{}.pth'.format(ep)))
scheduler.step()
writer.close()
def main(data_dir):
origin_img, uv_map_gt, uv_map_predicted = None, None, None
if not os.path.exists(FLAGS['images']):
os.mkdir(FLAGS['images'])
# 1) Create Dataset of 300_WLP & Dataloader.
wlp300 = PRNetDataset(root_dir=data_dir,
transform=transforms.Compose([
ToTensor(),
ToResize((416, 416)),
ToNormalize(FLAGS["normalize_mean"],
FLAGS["normalize_std"])
]))
wlp300_dataloader = DataLoader(dataset=wlp300,
batch_size=FLAGS['batch_size'],
shuffle=True,
num_workers=1)
# 2) Intermediate Processing.
transform_img = transforms.Compose([
#transforms.ToTensor(),
transforms.Normalize(FLAGS["normalize_mean"], FLAGS["normalize_std"])
])
# 3) Create PRNet model.
start_epoch, target_epoch = FLAGS['start_epoch'], FLAGS['target_epoch']
g_x = ResFCN256(resolution_input=416,
resolution_output=416,
channel=3,
size=16)
g_y = ResFCN256(resolution_input=416,
resolution_output=416,
channel=3,
size=16)
d_x = Discriminator()
d_y = Discriminator()
# Load the pre-trained weight
if FLAGS['resume'] != "" and os.path.exists(
os.path.join(FLAGS['pretrained'], FLAGS['resume'])):
state = torch.load(os.path.join(FLAGS['pretrained'], FLAGS['resume']))
try:
g_x.load_state_dict(state['g_x'])
g_y.load_state_dict(state['g_y'])
d_x.load_state_dict(state['d_x'])
d_y.load_state_dict(state['d_y'])
except Exception:
g_x.load_state_dict(state['prnet'])
start_epoch = state['start_epoch']
INFO("Load the pre-trained weight! Start from Epoch", start_epoch)
else:
start_epoch = 0
INFO(
"Pre-trained weight cannot load successfully, train from scratch!")
if torch.cuda.device_count() > 1:
model = torch.nn.DataParallel(model)
g_x.to(FLAGS["device"])
g_y.to(FLAGS["device"])
d_x.to(FLAGS["device"])
d_y.to(FLAGS["device"])
optimizer_g = torch.optim.Adam(itertools.chain(g_x.parameters(),
g_y.parameters()),
lr=FLAGS["lr"],
betas=(0.5, 0.999))
optimizer_d = torch.optim.Adam(itertools.chain(d_x.parameters(),
d_y.parameters()),
lr=FLAGS["lr"])
scheduler = torch.optim.lr_scheduler.ExponentialLR(optimizer_g, gamma=0.99)
stat_loss = SSIM(mask_path=FLAGS["mask_path"], gauss=FLAGS["gauss_kernel"])
loss = WeightMaskLoss(mask_path=FLAGS["mask_path"])
bce_loss = torch.nn.BCEWithLogitsLoss()
bce_loss.to(FLAGS["device"])
l1_loss = nn.L1Loss().to(FLAGS["device"])
lambda_X = 10
lambda_Y = 10
#Loss function for adversarial
for ep in range(start_epoch, target_epoch):
bar = tqdm(wlp300_dataloader)
loss_list_cycle_x = []
loss_list_cycle_y = []
loss_list_d_x = []
loss_list_d_y = []
real_label = torch.ones(FLAGS['batch_size'])
fake_label = torch.zeros(FLAGS['batch_size'])
for i, sample in enumerate(bar):
real_y, real_x = sample['uv_map'].to(
FLAGS['device']), sample['origin'].to(FLAGS['device'])
# x -> y' -> x^
optimizer_g.zero_grad()
fake_y = g_x(real_x)
prediction = d_x(fake_y)
loss_g_x = bce_loss(prediction, real_label)
x_hat = g_y(fake_y)
loss_cycle_x = l1_loss(x_hat, real_x) * lambda_X
loss_x = loss_g_x + loss_cycle_x
loss_x.backward(retain_graph=True)
optimizer_g.step()
loss_list_cycle_x.append(loss_x.item())
# y -> x' -> y^
optimizer_g.zero_grad()
fake_x = g_y(real_y)
prediction = d_y(fake_x)
loss_g_y = bce_loss(prediction, real_label)
y_hat = g_x(fake_x)
loss_cycle_y = l1_loss(y_hat, real_y) * lambda_Y
loss_y = loss_g_y + loss_cycle_y
loss_y.backward(retain_graph=True)
optimizer_g.step()
loss_list_cycle_y.append(loss_y.item())
# d_x
optimizer_d.zero_grad()
pred_real = d_x(real_y)
loss_d_x_real = bce_loss(pred_real, real_label)
pred_fake = d_x(fake_y)
loss_d_x_fake = bce_loss(pred_fake, fake_label)
loss_d_x = (loss_d_x_real + loss_d_x_fake) * 0.5
loss_d_x.backward()
loss_list_d_x.append(loss_d_x.item())
optimizer_d.step()
if 'WGAN' in FLAGS['gan_type']:
for p in d_x.parameters():
p.data.clamp_(-1, 1)
# d_y
optimizer_d.zero_grad()
pred_real = d_y(real_x)
loss_d_y_real = bce_loss(pred_real, real_label)
pred_fake = d_y(fake_x)
loss_d_y_fake = bce_loss(pred_fake, fake_label)
loss_d_y = (loss_d_y_real + loss_d_y_fake) * 0.5
loss_d_y.backward()
loss_list_d_y.append(loss_d_y.item())
optimizer_d.step()
if 'WGAN' in FLAGS['gan_type']:
for p in d_y.parameters():
p.data.clamp_(-1, 1)
if ep % FLAGS["save_interval"] == 0:
with torch.no_grad():
print(
" {} [Loss_G_X] {} [Loss_G_Y] {} [Loss_D_X] {} [Loss_D_Y] {}"
.format(ep, loss_list_g_x[-1], loss_list_g_y[-1],
loss_list_d_x[-1], loss_list_d_y[-1]))
origin = cv2.imread("./test_data/obama_origin.jpg")
gt_uv_map = np.load("./test_data/test_obama.npy")
origin, gt_uv_map = test_data_preprocess(
origin), test_data_preprocess(gt_uv_map)
origin, gt_uv_map = transform_img(origin), transform_img(
gt_uv_map)
origin_in = origin.unsqueeze_(0).cuda()
pred_uv_map = g_x(origin_in).detach().cpu()
save_image(
[origin.cpu(),
gt_uv_map.unsqueeze_(0).cpu(), pred_uv_map],
os.path.join(FLAGS['images'],
str(ep) + '.png'),
nrow=1,
normalize=True)
# Save model
print("Save model")
state = {
'g_x': g_x.state_dict(),
'g_y': g_y.state_dict(),
'd_x': d_x.state_dict(),
'd_y': d_y.state_dict(),
'start_epoch': ep,
}
torch.save(state, os.path.join(FLAGS['images'],
'{}.pth'.format(ep)))
scheduler.step()
def main(argv=None):
# 1.数据占位符
# 训练图片输入
image = tf.placeholder(tf.float32,
shape=[None, IMAGE_SIZE, IMAGE_SIZE, 3],
name="input_image")
# 训练集标签
label = tf.placeholder(tf.int32,
shape=[None, IMAGE_SIZE, IMAGE_SIZE, 1],
name="label")
# dropout比例
dropout_keep_probability = tf.placeholder(tf.float32,
name="dropout_keep_probability")
# 2.模型
# pred_label为预测出来的分割图,logits是用来计算损失来迭代优化
pred_label, logits = model(image, dropout_keep_probability)
# print(pred_label.get_shape()) # (?, ?, ?, 1)
# print('*'*20)
# print(logits.get_shape()) # (?, ?, ?, 151)
# print('*' * 20)
# print(label.get_shape()) # (?, 224, 224, 1)
# print(tf.squeeze(label, squeeze_dims=[3]).get_shape()) # (?, 224, 224)
# print('*' * 20)
# 3.loss
loss = tf.reduce_mean((tf.nn.sparse_softmax_cross_entropy_with_logits(
logits=logits,
labels=tf.squeeze(label, squeeze_dims=[3]),
name="entropy")))
# 4.优化
# trainable_var = tf.trainable_variables() # 返回需要训练的变量列表
# optimizer = tf.train.AdamOptimizer(FLAGS.learning_rate)
# # apply_gradients和compute_gradients是所有的优化器都有的方法。为梯度修剪主要避免训练梯度爆炸和消失问题
# # ## minimize()的第一步，返回(gradient, variable)对的list。
# grads = optimizer.compute_gradients(loss, var_list=trainable_var)
# # ## minimize()的第二部分，返回一个执行梯度更新的ops。
# train_op = optimizer.apply_gradients(grads)
train_op = tf.train.AdagradOptimizer(FLAGS.learning_rate).minimize(loss)
# 5.准确率，使用测试训练集loss
# 6.在tensorboard中画图
loss_summary = tf.summary.scalar("loss", loss)
summary_op = tf.summary.merge_all()
# 7.创建一个保存模型的saver
saver = tf.train.Saver()
# 8.定义一个初始化变量op
variable_op = tf.global_variables_initializer()
# 9.训练或预测
with tf.Session() as sess:
# 9.1初始化所有变量
sess.run(variable_op)
# 9.2定义存储tensorboard的文件位置
tensorboard_writer = tf.summary.FileWriter(
FLAGS.tensorboard_dir + 'train/', sess.graph)
# 9.3获取真实数据
print("Setting up image reader...")
train_records, valid_records = scene_parsing.read_dataset(
FLAGS.data_dir)
print(len(train_records))
print(len(valid_records))
print("Setting up dataset reader")
image_options = {'resize': True, 'resize_size': IMAGE_SIZE}
if FLAGS.is_train == 1:
train_dataset_reader = dataset.BatchDatset(train_records,
image_options)
print("训练集数据准备完毕")
validation_dataset_reader = dataset.BatchDatset(
valid_records, image_options)
print("测试集数据准备完毕")
# 9.4训练
if FLAGS.is_train == 1:
print("开始迭代训练")
for itr in range(MAX_ITERATION):
train_images, train_annotations = train_dataset_reader.next_batch(
FLAGS.batch_size)
feed_dict = {
image: train_images,
label: train_annotations,
dropout_keep_probability: 0.85
}
sess.run(train_op, feed_dict=feed_dict)
# 9.4.1训练集误差
if itr % 10 == 0:
train_loss, summary_str = sess.run([loss, loss_summary],
feed_dict=feed_dict)
print("Step: %d, Train_loss:%g" % (itr, train_loss))
tensorboard_writer.add_summary(summary_str, itr)
# 9.4.2测试集误差
if itr % 500 == 0:
valid_images, valid_annotations = validation_dataset_reader.next_batch(
FLAGS.batch_size)
valid_loss, summary_sva = sess.run(
[loss, loss_summary],
feed_dict={
image: valid_images,
label: valid_annotations,
dropout_keep_probability: 1.0
})
print("%s ---> Validation_loss: %g" %
(datetime.datetime.now(), valid_loss))
# add validation loss to TensorBoard
tensorboard_writer.add_summary(summary_sva, itr)
# 9.4.3保存模型
saver.save(sess, FLAGS.save_model_dir + "model.ckpt")
# 做预测验证
else:
# 使用测试集来做预测，查看模型的正确性
valid_images, valid_annotations = validation_dataset_reader.get_random_batch(
FLAGS.batch_size)
pred = sess.run(pred_label,
feed_dict={
image: valid_images,
label: valid_annotations,
dropout_keep_probability: 1.0
})
# 目标分割图
valid_annotations = np.squeeze(valid_annotations, axis=3)
# 预测分割图
pred = np.squeeze(pred, axis=3)
for itr in range(FLAGS.batch_size):
# 原始图
utils.save_image(valid_images[itr].astype(np.uint8),
FLAGS.verify_dir,
name="inp_" + str(5 + itr))
# 目标分割图
utils.save_image(valid_annotations[itr].astype(np.uint8),
FLAGS.verify_dir,
name="gt_" + str(5 + itr))
# 预测分割图
utils.save_image(pred[itr].astype(np.uint8),
FLAGS.verify_dir,
name="pred_" + str(5 + itr))
print("Saved image: %d" % itr)
return None
def display_current_results(self, visuals, epoch, save_result):
if self.display_id > 0: # show images in the browser
ncols = self.opt.display_single_pane_ncols
if ncols > 0:
h, w = next(iter(visuals.values())).shape[:2]
table_css = """<style>
table {border-collapse: separate; border-spacing:4px; white-space:nowrap; text-align:center}
table td {width: %dpx; height: %dpx; padding: 4px; outline: 4px solid black}
</style>""" % (w, h)
title = self.name
label_html = ''
label_html_row = ''
nrows = int(np.ceil(len(visuals.items()) / ncols))
images = []
idx = 0
for label, image_numpy in visuals.items():
label_html_row += '<td>%s</td>' % label
images.append(image_numpy.transpose([2, 0, 1]))
idx += 1
if idx % ncols == 0:
label_html += '<tr>%s</tr>' % label_html_row
label_html_row = ''
white_image = np.ones_like(image_numpy.transpose([2, 0, 1]))*255
while idx % ncols != 0:
images.append(white_image)
label_html_row += '<td></td>'
idx += 1
if label_html_row != '':
label_html += '<tr>%s</tr>' % label_html_row
# pane col = image row
self.vis.images(images, nrow=ncols, win=self.display_id + 1,
padding=2, opts=dict(title=title + ' images'))
label_html = '<table>%s</table>' % label_html
self.vis.text(table_css + label_html, win=self.display_id + 2,
opts=dict(title=title + ' labels'))
else:
idx = 1
for label, image_numpy in visuals.items():
self.vis.image(image_numpy.transpose([2, 0, 1]), opts=dict(title=label),
win=self.display_id + idx)
idx += 1
if self.use_html and (save_result or not self.saved): # save images to a html file
self.saved = True
for label, image_numpy in visuals.items():
img_path = os.path.join(self.img_dir, 'epoch%.3d_%s.png' % (epoch, label))
utils.save_image(image_numpy, img_path)
# update website
webpage = html.HTML(self.web_dir, 'Experiment name = %s' % self.name, reflesh=1)
for n in range(epoch, 0, -1):
webpage.add_header('epoch [%d]' % n)
ims = []
txts = []
links = []
for label, image_numpy in visuals.items():
img_path = 'epoch%.3d_%s.png' % (n, label)
ims.append(img_path)
txts.append(label)
links.append(img_path)
webpage.add_images(ims, txts, links, width=self.win_size)
webpage.save()
i = 1
while True:
try:
rmse_all, costs, diff = model.test(sess, i, summary_writer=summary_writer, print_rate=200, sample_dir=sample_dir, meta=meta)
for er, dif, k in zip(rmse_all, diff, range(len(global_rmse))):
global_rmse[k] += er
global_diff[k] += dif
for cost, k in zip(global_costs, range(len(global_costs))):
global_costs[k] += cost
i += 1
except tf.errors.OutOfRangeError:
print('Number of steps: %d', i)
for rmse, p, dif in zip(global_rmse, weather_params, global_diff):
print("----------- Global RMSE of %s: %g" % (p, rmse/i))
print('Saving global and mean diffs')
save_image(dif, sample_dir, 'diff_global_%s' % p)
save_image(dif/i, sample_dir, 'diff_mean_%s' % p)
print('----------- Mean Generator cost (%g + %g) % ' % (global_costs[0]/i, global_costs[1]/i))
print('----------- Mean Diskriminator/Critic cost (%g + %g) % ' % (global_costs[2]/i, global_costs[3]/i))
break
print('Testo donezo')
#
# Shut everything down
#
# Wait for threads to finish.
sess.close()
def main(data_dir):
# 0) Tensoboard Writer.
writer = SummaryWriter(FLAGS['summary_path'])
origin_img, uv_map_gt, uv_map_predicted = None, None, None
if not os.path.exists(FLAGS['images']):
os.mkdir(FLAGS['images'])
# 1) Create Dataset of 300_WLP & Dataloader.
wlp300 = PRNetDataset(root_dir=data_dir,
transform=transforms.Compose([ToTensor(),
ToNormalize(FLAGS["normalize_mean"], FLAGS["normalize_std"])]))
wlp300_dataloader = DataLoader(dataset=wlp300, batch_size=FLAGS['batch_size'], shuffle=True, num_workers=4)
# 2) Intermediate Processing.
transform_img = transforms.Compose([
transforms.ToTensor(),
transforms.Normalize(FLAGS["normalize_mean"], FLAGS["normalize_std"])
])
# 3) Create PRNet model.
start_epoch, target_epoch = FLAGS['start_epoch'], FLAGS['target_epoch']
model = ResFCN256()
# Load the pre-trained weight
if FLAGS['resume'] and os.path.exists(os.path.join(FLAGS['images'], "latest.pth")):
state = torch.load(os.path.join(FLAGS['images'], "latest.pth"))
model.load_state_dict(state['prnet'])
start_epoch = state['start_epoch']
INFO("Load the pre-trained weight! Start from Epoch", start_epoch)
else:
start_epoch = 0
INFO("Pre-trained weight cannot load successfully, train from scratch!")
if torch.cuda.device_count() > 1:
model = torch.nn.DataParallel(model)
model.to("cuda")
optimizer = torch.optim.Adam(model.parameters(), lr=FLAGS["lr"], betas=(0.5, 0.999))
scheduler = torch.optim.lr_scheduler.ExponentialLR(optimizer, gamma=0.99)
stat_loss = SSIM(mask_path=FLAGS["mask_path"], gauss=FLAGS["gauss_kernel"])
loss = WeightMaskLoss(mask_path=FLAGS["mask_path"])
for ep in range(start_epoch, target_epoch):
bar = tqdm(wlp300_dataloader)
Loss_list, Stat_list = [], []
for i, sample in enumerate(bar):
uv_map, origin = sample['uv_map'].to(FLAGS['device']), sample['origin'].to(FLAGS['device'])
# Inference.
uv_map_result = model(origin)
# Loss & ssim stat.
logit = loss(uv_map_result, uv_map)
stat_logit = stat_loss(uv_map_result, uv_map)
# Record Loss.
Loss_list.append(logit.item())
Stat_list.append(stat_logit.item())
# Update.
optimizer.zero_grad()
logit.backward()
optimizer.step()
bar.set_description(" {} [Loss(Paper)] {} [SSIM({})] {}".format(ep, Loss_list[-1], FLAGS["gauss_kernel"], Stat_list[-1]))
# Record Training information in Tensorboard.
if origin_img is None and uv_map_gt is None:
origin_img, uv_map_gt = origin, uv_map
uv_map_predicted = uv_map_result
writer.add_scalar("Original Loss", Loss_list[-1], FLAGS["summary_step"])
writer.add_scalar("SSIM Loss", Stat_list[-1], FLAGS["summary_step"])
grid_1, grid_2, grid_3 = make_grid(origin_img, normalize=True), make_grid(uv_map_gt), make_grid(uv_map_predicted)
writer.add_image('original', grid_1, FLAGS["summary_step"])
writer.add_image('gt_uv_map', grid_2, FLAGS["summary_step"])
writer.add_image('predicted_uv_map', grid_3, FLAGS["summary_step"])
writer.add_graph(model, uv_map)
if ep % FLAGS["save_interval"] == 0:
with torch.no_grad():
origin = cv2.imread("./test_data/obama_origin.jpg")
gt_uv_map = np.load("./test_data/test_obama.npy")
origin, gt_uv_map = test_data_preprocess(origin), test_data_preprocess(gt_uv_map)
# origin, gt_uv_map = transform_img(origin), transform_img(gt_uv_map)
origin_in = origin.unsqueeze_(0).cuda()
pred_uv_map = model(origin_in).detach().cpu()
save_image([origin.cpu(), gt_uv_map.unsqueeze_(0).cpu(), pred_uv_map],
os.path.join(FLAGS['images'], str(ep) + '.png'), nrow=1, normalize=True)
# Save model
state = {
'prnet': model.state_dict(),
'Loss': Loss_list,
'start_epoch': ep,
}
torch.save(state, os.path.join(FLAGS['images'], 'latest.pth'))
scheduler.step()
writer.close()
def save_train_images(self, epoch):
save_image(tensor2im(self.real_A),
self.opt.img_save_path + f"/real_A_epoch_{epoch}.png")
save_image(tensor2im(self.real_B),
self.opt.img_save_path + f"/real_B_epoch_{epoch}.png")
save_image(tensor2im(self.rec_A),
self.opt.img_save_path + f"/rec_A_epoch_{epoch}.png")
save_image(tensor2im(self.rec_B),
self.opt.img_save_path + f"/rec_B_epoch_{epoch}.png")
save_image(tensor2im(self.idt_A),
self.opt.img_save_path + f"/idt_A_epoch_{epoch}.png")
save_image(tensor2im(self.idt_B),
self.opt.img_save_path + f"/idt_B_epoch_{epoch}.png")
import time
from IFM.ifm import information_flow_matting
from utils.utils import save_image, show_image
if __name__ == '__main__':
file_name = 'pineapple.png'
trimap_sub_dir = 'Trimap1'
input_dir = './data/input_lowres/'
trimap_dir = './data/trimap_lowres/'
out_dir = './out/test/'
time_start = time.time()
# matting
alpha_matte = information_flow_matting(
input_dir + file_name, trimap_dir + trimap_sub_dir + '/' + file_name,
(file_name != 'net.png' and file_name != 'plasticbag.png')) # 人工区分高透明度
time_end = time.time()
print('cost: {:.2f}s'.format(time_end - time_start))
# save
save_image(alpha_matte, out_dir + trimap_sub_dir + '/', file_name, True)
# show
# show_image(alpha_matte)
def main():
global args, best_result, output_directory
print(torch.__version__)
# set random seed
torch.manual_seed(args.manual_seed)
if torch.cuda.device_count() > 1:
print("Let's use", torch.cuda.device_count(), "GPUs!")
print(torch.version.cuda)
print(torch.cuda.device_count())
print(torch.cuda.is_available())
print()
args.batch_size = args.batch_size * torch.cuda.device_count()
else:
print("Let's use GPU ", torch.cuda.current_device())
train_loader, val_loader = utils.create_loader(args)
# load model
if args.resume:
assert os.path.isfile(args.resume), \
"=> no checkpoint found at '{}'".format(args.resume)
print("=> loading checkpoint '{}'".format(args.resume))
checkpoint = torch.load(args.resume)
start_epoch = checkpoint['epoch'] + 1
best_result = checkpoint['best_result']
optimizer = checkpoint['optimizer']
# solve 'out of memory'
model = checkpoint['model']
print("=> loaded checkpoint (epoch {})".format(
checkpoint['epoch']), flush=True)
# clear memory
del checkpoint
# del model_dict
torch.cuda.empty_cache()
else:
print("=> creating Model from scratch")
model = FCRN.ResNet(layers=args.resnet_layers,
output_size=train_loader.dataset.output_size)
start_epoch = 0
# different modules have different learning rate
train_params = [{'params': model.get_1x_lr_params(), 'lr': args.lr},
{'params': model.get_10x_lr_params(), 'lr': args.lr * 10}]
if args.optim == 'sgd':
optimizer = torch.optim.SGD(
train_params, lr=args.lr, momentum=args.momentum, weight_decay=args.weight_decay)
elif args.optim == 'adam':
optimizer = torch.optim.Adam(
train_params, lr=args.lr, weight_decay=args.weight_decay)
else:
assert(False, "{} optim not supported".format(args.optim))
# You can use DataParallel() whether you use Multi-GPUs or not
model = nn.DataParallel(model).cuda()
attacker = None
if args.adv_training:
start_epoch = 0
best_result.set_to_worst()
if not args.attack:
assert(False, "You must supply an attack for adversarial training")
if args.attack == 'mifgsm':
attacker = MIFGSM(model, "cuda:0", args.loss,
eps=mifgsm_params['eps'],
steps=mifgsm_params['steps'],
decay=mifgsm_params['decay'],
alpha=mifgsm_params['alpha'],
TI=mifgsm_params['TI'],
k_=mifgsm_params['k'],
targeted=args.targeted,
test=args.model)
elif args.attack == 'pgd':
attacker = PGD(model, "cuda:0", args.loss,
norm=pgd_params['norm'],
eps=pgd_params['eps'],
alpha=pgd_params['alpha'],
iters=pgd_params['iterations'],
TI=pgd_params['TI'],
k_=mifgsm_params['k'],
test=args.model)
else:
assert(False, "{} attack not supported".format(args.attack))
print('performing adversarial training with {} attack and {} loss'.format(
args.attack, args.loss), flush=True)
else:
print('performing standard training with {} loss'.format(args.loss))
# when training, use reduceLROnPlateau to reduce learning rate
if args.scheduler == 'plateau':
scheduler = lr_scheduler.ReduceLROnPlateau(
optimizer, 'min', patience=args.lr_patience)
elif args.scheduler == 'cyclic':
scheduler = lr_scheduler.CyclicLR(
optimizer, base_lr=args.lr, max_lr=args.lr * 100)
elif args.scheduler == 'cosine':
scheduler = lr_scheduler.CosineAnnealingWarmRestarts(
optimizer, T_0=2, eta_min=0.000001, T_mult=2)
else:
scheduler = None
# loss function
if args.loss == 'l1':
criterion = criteria.MaskedL1Loss()
elif args.loss == 'l2':
criterion = criteria.MaskedMSELoss()
elif args.loss == 'berhu':
criterion = criteria.berHuLoss()
else:
assert(False, '{} loss not supported'.format(args.loss))
# create directory path
output_directory = utils.get_output_directory(args)
if not os.path.exists(output_directory):
os.makedirs(output_directory)
best_txt = os.path.join(output_directory, 'best.txt')
config_txt = os.path.join(output_directory, 'config.txt')
# write training parameters to config file
if not os.path.exists(config_txt):
with open(config_txt, 'w') as txtfile:
args_ = vars(args)
args_str = ''
for k, v in args_.items():
args_str = args_str + str(k) + ':' + str(v) + ',\t\n'
txtfile.write(args_str)
# create log
log_path = os.path.join(output_directory, 'logs',
datetime.now().strftime('%b%d_%H-%M-%S') + '_' + socket.gethostname())
if os.path.isdir(log_path):
shutil.rmtree(log_path)
os.makedirs(log_path)
# save every epoch if doing adversarial training
save_every_epoch = args.adv_training
for epoch in range(start_epoch, args.epochs):
# remember change of the learning rate
for i, param_group in enumerate(optimizer.param_groups):
old_lr = float(param_group['lr'])
train(train_loader, model, criterion, optimizer,
epoch, attacker) # train for one epoch
# evaluate on validation set
result, img_merge = validate(val_loader, model, epoch)
# remember best rmse and save checkpoint
is_best = result.rmse < best_result.rmse
if is_best:
best_result = result
with open(best_txt, 'w') as txtfile:
txtfile.write(
"epoch={}, rmse={:.3f}, rml={:.3f}, log10={:.3f}, d1={:.3f}, d2={:.3f}, dd31={:.3f}, "
"t_gpu={:.4f}".
format(epoch, result.rmse, result.absrel, result.lg10, result.delta1, result.delta2,
result.delta3,
result.gpu_time))
if img_merge is not None:
img_filename = output_directory + '/comparison_best.png'
utils.save_image(img_merge, img_filename)
# save checkpoint for each epoch
utils.save_checkpoint({
'args': args,
'epoch': epoch,
'model': model,
'best_result': best_result,
'optimizer': optimizer,
}, is_best, epoch, output_directory, save_every_epoch)
# when rml doesn't fall, reduce learning rate
if scheduler is not None:
if args.scheduler == 'plateau':
scheduler.step(result.rmse)
elif args.scheduler == 'cyclic':
scheduler.step()
elif args.scheduler == 'cosine':
scheduler.step()
def main(data_dir):
origin_img, uv_map_gt, uv_map_predicted = None, None, None
if not os.path.exists(FLAGS['images']):
os.mkdir(FLAGS['images'])
# 1) Create Dataset of 300_WLP & Dataloader.
wlp300 = PRNetDataset(root_dir=data_dir,
transform=transforms.Compose([
ToTensor(),
ToResize((256, 256)),
ToNormalize(FLAGS["normalize_mean"],
FLAGS["normalize_std"])
]))
wlp300_dataloader = DataLoader(dataset=wlp300,
batch_size=FLAGS['batch_size'],
shuffle=True,
num_workers=1)
# 2) Intermediate Processing.
transform_img = transforms.Compose([
#transforms.ToTensor(),
transforms.Normalize(FLAGS["normalize_mean"], FLAGS["normalize_std"])
])
# 3) Create PRNet model.
start_epoch, target_epoch = FLAGS['start_epoch'], FLAGS['target_epoch']
model = ResFCN256(resolution_input=256,
resolution_output=256,
channel=3,
size=16)
# Load the pre-trained weight
if FLAGS['resume'] != "" and os.path.exists(
os.path.join(FLAGS['pretrained'], FLAGS['resume'])):
state = torch.load(os.path.join(FLAGS['pretrained'], FLAGS['resume']))
model.load_state_dict(state['prnet'])
start_epoch = state['start_epoch']
INFO("Load the pre-trained weight! Start from Epoch", start_epoch)
else:
start_epoch = 0
INFO(
"Pre-trained weight cannot load successfully, train from scratch!")
if torch.cuda.device_count() > 1:
model = torch.nn.DataParallel(model)
model.to(FLAGS["device"])
optimizer = torch.optim.Adam(model.parameters(),
lr=FLAGS["lr"],
betas=(0.5, 0.999))
scheduler = torch.optim.lr_scheduler.ExponentialLR(optimizer, gamma=0.99)
stat_loss = SSIM(mask_path=FLAGS["mask_path"], gauss=FLAGS["gauss_kernel"])
loss = WeightMaskLoss(mask_path=FLAGS["mask_path"])
bce_loss = torch.nn.BCEWithLogitsLoss()
bce_loss.to(FLAGS["device"])
#Loss function for adversarial
for ep in range(start_epoch, target_epoch):
bar = tqdm(wlp300_dataloader)
loss_list_G, stat_list = [], []
for i, sample in enumerate(bar):
uv_map, origin = sample['uv_map'].to(
FLAGS['device']), sample['origin'].to(FLAGS['device'])
# Inference.
optimizer.zero_grad()
uv_map_result = model(origin)
loss_g = bce_loss(uv_map_result, uv_map)
loss_g.backward()
loss_list_G.append(loss_g.item())
optimizer.step()
if ep % FLAGS["save_interval"] == 0:
with torch.no_grad():
print(" {} [BCE ({})]".format(ep, loss_list_G[-1]))
origin = cv2.imread("./test_data/obama_origin.jpg")
gt_uv_map = np.load("./test_data/test_obama.npy")
origin, gt_uv_map = test_data_preprocess(
origin), test_data_preprocess(gt_uv_map)
origin, gt_uv_map = transform_img(origin), transform_img(
gt_uv_map)
origin_in = origin.unsqueeze_(0).cuda()
pred_uv_map = model(origin_in).detach().cpu()
save_image(
[origin.cpu(),
gt_uv_map.unsqueeze_(0).cpu(), pred_uv_map],
os.path.join(FLAGS['images'],
str(ep) + '.png'),
nrow=1,
normalize=True)
# Save model
print("Save model")
state = {
'prnet': model.state_dict(),
'Loss': loss_list_G,
'start_epoch': ep
}
torch.save(state, os.path.join(FLAGS['images'],
'{}.pth'.format(ep)))
scheduler.step()
def reconstruct_image_from_representation(config):
should_reconstruct_content = config['should_reconstruct_content']
should_visualize_representation = config['should_visualize_representation']
dump_path = os.path.join(config['output_img_dir'],
('c' if should_reconstruct_content else 's') +
'_reconstruction_' + config['optimizer'])
dump_path = os.path.join(
dump_path, config['content_img_name'].split('.')[0] if
should_reconstruct_content else config['style_img_name'].split('.')[0])
os.makedirs(dump_path, exist_ok=True)
content_img_path = os.path.join(config['content_images_dir'],
config['content_img_name'])
style_img_path = os.path.join(config['style_images_dir'],
config['style_img_name'])
img_path = content_img_path if should_reconstruct_content else style_img_path
device = torch.device("cuda" if torch.cuda.is_available() else "cpu")
img = utils.prepare_img(img_path, config['height'], device)
gaussian_noise_img = np.random.normal(loc=0, scale=90.,
size=img.shape).astype(np.float32)
white_noise_img = np.random.uniform(-90., 90.,
img.shape).astype(np.float32)
init_img = torch.from_numpy(white_noise_img).float().to(device)
optimizing_img = Variable(init_img, requires_grad=True)
# indices pick relevant feature maps (say conv4_1, relu1_1, etc.)
neural_net, content_feature_maps_index_name, style_feature_maps_indices_names = utils.prepare_model(
config['model'], device)
# don't want to expose everything that's not crucial so some things are hardcoded
num_of_iterations = {'adam': 3000, 'lbfgs': 350}
set_of_feature_maps = neural_net(img)
#
# Visualize feature maps and Gram matrices (depending whether you're reconstructing content or style img)
#
if should_reconstruct_content:
target_content_representation = set_of_feature_maps[
content_feature_maps_index_name[0]].squeeze(axis=0)
if should_visualize_representation:
num_of_feature_maps = target_content_representation.size()[0]
print(f'Number of feature maps: {num_of_feature_maps}')
for i in range(num_of_feature_maps):
feature_map = target_content_representation[i].to(
'cpu').numpy()
feature_map = np.uint8(utils.get_uint8_range(feature_map))
plt.imshow(feature_map)
plt.title(
f'Feature map {i+1}/{num_of_feature_maps} from layer {content_feature_maps_index_name[1]} (model={config["model"]}) for {config["content_img_name"]} image.'
)
plt.show()
filename = f'fm_{config["model"]}_{content_feature_maps_index_name[1]}_{str(i).zfill(config["img_format"][0])}{config["img_format"][1]}'
utils.save_image(feature_map,
os.path.join(dump_path, filename))
else:
target_style_representation = [
utils.gram_matrix(fmaps)
for i, fmaps in enumerate(set_of_feature_maps)
if i in style_feature_maps_indices_names[0]
]
if should_visualize_representation:
num_of_gram_matrices = len(target_style_representation)
print(f'Number of Gram matrices: {num_of_gram_matrices}')
for i in range(num_of_gram_matrices):
Gram_matrix = target_style_representation[i].squeeze(
axis=0).to('cpu').numpy()
Gram_matrix = np.uint8(utils.get_uint8_range(Gram_matrix))
plt.imshow(Gram_matrix)
plt.title(
f'Gram matrix from layer {style_feature_maps_indices_names[1][i]} (model={config["model"]}) for {config["style_img_name"]} image.'
)
plt.show()
filename = f'gram_{config["model"]}_{style_feature_maps_indices_names[1][i]}_{str(i).zfill(config["img_format"][0])}{config["img_format"][1]}'
utils.save_image(Gram_matrix,
os.path.join(dump_path, filename))
#
# Start of optimization procedure
#
if config['optimizer'] == 'adam':
optimizer = Adam((optimizing_img, ))
target_representation = target_content_representation if should_reconstruct_content else target_style_representation
tuning_step = make_tuning_step(neural_net, optimizer,
target_representation,
should_reconstruct_content,
content_feature_maps_index_name[0],
style_feature_maps_indices_names[0])
for it in range(num_of_iterations[config['optimizer']]):
loss, _ = tuning_step(optimizing_img)
with torch.no_grad():
print(
f'Iteration: {it}, current {"content" if should_reconstruct_content else "style"} loss={loss:10.8f}'
)
utils.save_and_maybe_display(
optimizing_img,
dump_path,
config,
it,
num_of_iterations[config['optimizer']],
should_display=False)
elif config['optimizer'] == 'lbfgs':
cnt = 0
# closure is a function required by L-BFGS optimizer
def closure():
nonlocal cnt
optimizer.zero_grad()
loss = 0.0
if should_reconstruct_content:
loss = torch.nn.MSELoss(reduction='mean')(
target_content_representation, neural_net(optimizing_img)[
content_feature_maps_index_name[0]].squeeze(axis=0))
else:
current_set_of_feature_maps = neural_net(optimizing_img)
current_style_representation = [
utils.gram_matrix(fmaps)
for i, fmaps in enumerate(current_set_of_feature_maps)
if i in style_feature_maps_indices_names[0]
]
for gram_gt, gram_hat in zip(target_style_representation,
current_style_representation):
loss += (1 / len(target_style_representation)
) * torch.nn.MSELoss(reduction='sum')(gram_gt[0],
gram_hat[0])
loss.backward()
with torch.no_grad():
print(
f'Iteration: {cnt}, current {"content" if should_reconstruct_content else "style"} loss={loss.item()}'
)
utils.save_and_maybe_display(
optimizing_img,
dump_path,
config,
cnt,
num_of_iterations[config['optimizer']],
should_display=False)
cnt += 1
return loss
optimizer = torch.optim.LBFGS(
(optimizing_img, ),
max_iter=num_of_iterations[config['optimizer']],
line_search_fn='strong_wolfe')
optimizer.step(closure)
return dump_path
def display_current_results(self, visuals, epoch, save_result):
if self.display_id > 0: # show images in the browser
ncols = self.opt.display_single_pane_ncols
if ncols > 0:
h, w = next(iter(visuals.values())).shape[:2]
table_css = """<style>
table {border-collapse: separate; border-spacing:4px; white-space:nowrap; text-align:center}
table td {width: %dpx; height: %dpx; padding: 4px; outline: 4px solid black}
</style>""" % (w, h)
title = self.name
label_html = ''
label_html_row = ''
nrows = int(np.ceil(len(visuals.items()) / ncols))
images = []
idx = 0
for label, image_numpy in visuals.items():
label_html_row += '<td>%s</td>' % label
images.append(image_numpy.transpose([2, 0, 1]))
idx += 1
if idx % ncols == 0:
label_html += '<tr>%s</tr>' % label_html_row
label_html_row = ''
white_image = np.ones_like(image_numpy.transpose([2, 0, 1
])) * 255
while idx % ncols != 0:
images.append(white_image)
label_html_row += '<td></td>'
idx += 1
if label_html_row != '':
label_html += '<tr>%s</tr>' % label_html_row
# pane col = image row
self.vis.images(images,
nrow=ncols,
win=self.display_id + 1,
padding=2,
opts=dict(title=title + ' images'))
label_html = '<table>%s</table>' % label_html
self.vis.text(table_css + label_html,
win=self.display_id + 2,
opts=dict(title=title + ' labels'))
else:
idx = 1
for label, image_numpy in visuals.items():
self.vis.image(image_numpy.transpose([2, 0, 1]),
opts=dict(title=label),
win=self.display_id + idx)
idx += 1
if self.use_html and (save_result
or not self.saved): # save images to a html file
self.saved = True
for label, image_numpy in visuals.items():
img_path = os.path.join(self.img_dir,
'epoch%.3d_%s.png' % (epoch, label))
utils.save_image(image_numpy, img_path)
# update website
webpage = html.HTML(self.web_dir,
'Experiment name = %s' % self.name,
reflesh=1)
for n in range(epoch, 0, -1):
webpage.add_header('epoch [%d]' % n)
ims = []
txts = []
links = []
for label, image_numpy in visuals.items():
img_path = 'epoch%.3d_%s.png' % (n, label)
ims.append(img_path)
txts.append(label)
links.append(img_path)
webpage.add_images(ims, txts, links, width=self.win_size)
webpage.save()
def main(opts):
# Create the data loader
# loader = sunnerData.DataLoader(sunnerData.ImageDataset(
# root=[[opts.path]],
# transforms=transforms.Compose([
# sunnertransforms.Resize((1024, 1024)),
# sunnertransforms.ToTensor(),
# sunnertransforms.ToFloat(),
# #sunnertransforms.Transpose(sunnertransforms.BHWC2BCHW),
# sunnertransforms.Normalize(),
# ])),
# batch_size=opts.batch_size,
# shuffle=True,
# )
loader = data_loader(opts.path)
device = fluid.CUDAPlace(0) if opts.device == 'GPU' else fluid.CPUPlace(0)
with fluid.dygraph.guard(device):
# Create the model
start_epoch = 0
G = StyleGenerator()
D = StyleDiscriminator()
# Load the pre-trained weight
if os.path.exists(opts.resume):
INFO("Load the pre-trained weight!")
#state = fluid.dygraph.load_dygraph(opts.resume)
state = load_checkpoint(opts.resume)
G.load_dict(state['G'])
D.load_dict(state['D'])
start_epoch = state['start_epoch']
else:
INFO(
"Pre-trained weight cannot load successfully, train from scratch!"
)
# # Multi-GPU support
# if torch.cuda.device_count() > 1:
# INFO("Multiple GPU:" + str(torch.cuda.device_count()) + "\t GPUs")
# G = nn.DataParallel(G)
# D = nn.DataParallel(D)
scheduler_D = exponential_decay(learning_rate=0.00001,
decay_steps=1000,
decay_rate=0.99)
scheduler_G = exponential_decay(learning_rate=0.00001,
decay_steps=1000,
decay_rate=0.99)
optim_D = optim.Adam(parameter_list=D.parameters(),
learning_rate=scheduler_D)
optim_G = optim.Adam(parameter_list=G.parameters(),
learning_rate=scheduler_G)
# Train
fix_z = np.random.randn(opts.batch_size, 512)
fix_z = dygraph.to_variable(fix_z)
softplus = SoftPlus()
Loss_D_list = [0.0]
Loss_G_list = [0.0]
D.train()
G.train()
for ep in range(start_epoch, opts.epoch):
bar = tqdm(loader())
loss_D_list = []
loss_G_list = []
for i, data in enumerate(bar):
# =======================================================================================================
# (1) Update D network: maximize log(D(x)) + log(1 - D(G(z)))
# =======================================================================================================
# Compute adversarial loss toward discriminator
real_img = np.array([item for item in data],
dtype='float32').reshape(
(-1, 3, 1024, 1024))
D.clear_gradients()
real_img = dygraph.to_variable(real_img)
real_logit = D(real_img)
z = np.float32(np.random.randn(real_img.shape[0], 512))
fake_img = G(dygraph.to_variable(z))
fake_logit = D(fake_img)
d_loss = layers.mean(softplus(fake_logit))
d_loss = d_loss + layers.mean(softplus(-real_logit))
if opts.r1_gamma != 0.0:
r1_penalty = R1Penalty(real_img, D)
d_loss = d_loss + r1_penalty * (opts.r1_gamma * 0.5)
if opts.r2_gamma != 0.0:
r2_penalty = R2Penalty(fake_img, D)
d_loss = d_loss + r2_penalty * (opts.r2_gamma * 0.5)
loss_D_list.append(d_loss.numpy())
# Update discriminator
d_loss.backward()
optim_D.minimize(d_loss)
# =======================================================================================================
# (2) Update G network: maximize log(D(G(z)))
# =======================================================================================================
if i % CRITIC_ITER == 0:
G.clear_gradients()
fake_logit = D(fake_img.detach())
g_loss = layers.mean(softplus(-fake_logit))
#print("g_loss",g_loss)
loss_G_list.append(g_loss.numpy())
# Update generator
g_loss.backward()
optim_G.minimize(g_loss)
# Output training stats
bar.set_description("Epoch {} [{}, {}] [G]: {} [D]: {}".format(
ep, i + 1, 52000, loss_G_list[-1], loss_D_list[-1]))
# Save the result
Loss_G_list.append(np.mean(loss_G_list))
Loss_D_list.append(np.mean(loss_D_list))
# Check how the generator is doing by saving G's output on fixed_noise
G.eval()
#fake_img = G(fix_z).detach().cpu()
fake_img = G(fix_z).numpy().squeeze()
log(f"fake_img.shape: {fake_img.shape}")
save_image(fake_img,
os.path.join(opts.det, 'images',
str(ep) + '.png'))
G.train()
# Save model
# print("type:",type(G.state_dict()).__name__)
# print("type:",type(D.state_dict()).__name__)
states = {
'G': G.state_dict(),
'D': D.state_dict(),
'Loss_G': Loss_G_list,
'Loss_D': Loss_D_list,
'start_epoch': ep,
}
#dygraph.save_dygraph(state, os.path.join(opts.det, 'models', 'latest'))
save_checkpoint(states,
os.path.join(opts.det, 'models', 'latest.pp'))
# scheduler_D.step()
# scheduler_G.step()
# Plot the total loss curve
Loss_D_list = Loss_D_list[1:]
Loss_G_list = Loss_G_list[1:]
plotLossCurve(opts, Loss_D_list, Loss_G_list)