def main(config):
# For fast training.
cudnn.benchmark = True
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
if len(sys.argv) > 1:
os.environ["CUDA_VISIBLE_DEVICES"] = config.gpu
else:
os.environ["CUDA_VISIBLE_DEVICES"] = "5"
global device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
version = config.version
beta1 = 0.5
beta2 = 0.999
finetune_loader = data_loader_augment.get_loader(
"/media/data2/laixc/AI_DATA/expression_transfer/face12/crop_face",
"/media/data2/laixc/AI_DATA/expression_transfer/face12/points_face",
config)
loader, first_loader = data_loader.get_loader(
"/media/data2/laixc/AI_DATA/expression_transfer/face12/crop_sideface",
"/media/data2/laixc/AI_DATA/expression_transfer/face12/points_sideface",
config)
points_G = LandMarksDetect()
G = FastTrackExpressionGenerater()
D = SNResRealFakeDiscriminator()
FEN = FeatureExtractNet()
id_D = SNResIdDiscriminator()
####### 载入预训练网络 ######
resume_iter = config.resume_iter
ckpt_dir = "/media/data2/laixc/Facial_Expression_GAN/ckpt-{}".format(
version)
if not os.path.isdir(ckpt_dir):
os.mkdir(ckpt_dir)
log = Logger(os.path.join(ckpt_dir, 'log.txt'))
if os.path.exists(os.path.join(ckpt_dir, '{}-G.ckpt'.format(resume_iter))):
G_path = os.path.join(ckpt_dir, '{}-G.ckpt'.format(resume_iter))
G.load_state_dict(
torch.load(G_path, map_location=lambda storage, loc: storage))
D_path = os.path.join(ckpt_dir, '{}-D.ckpt'.format(resume_iter))
D.load_state_dict(
torch.load(D_path, map_location=lambda storage, loc: storage))
IdD_path = os.path.join(ckpt_dir, '{}-idD.ckpt'.format(resume_iter))
id_D.load_state_dict(
torch.load(IdD_path, map_location=lambda storage, loc: storage))
points_G_path = os.path.join(ckpt_dir,
'{}-pG.ckpt'.format(resume_iter))
points_G.load_state_dict(
torch.load(points_G_path,
map_location=lambda storage, loc: storage))
else:
resume_iter = 0
##### 训练face2keypoint ####
points_G_optimizer = torch.optim.Adam(points_G.parameters(),
lr=0.0001,
betas=(0.5, 0.9))
G_optimizer = torch.optim.Adam(G.parameters(), lr=0.0001, betas=(0.5, 0.9))
D_optimizer = torch.optim.Adam(D.parameters(), lr=0.001, betas=(0.5, 0.9))
idD_optimizer = torch.optim.Adam(id_D.parameters(),
lr=0.001,
betas=(0.5, 0.9))
G.to(device)
id_D.to(device)
D.to(device)
points_G.to(device)
FEN.to(device)
FEN.eval()
log.print(config)
# Start training from scratch or resume training.
start_iters = resume_iter
trigger_rec = 1
finetune_iter = iter(finetune_loader)
data_iter = iter(loader)
first_data_iters = iter(first_loader)
# Start training.
print('Start training...')
for i in range(start_iters, 150000):
# =================================================================================== #
# 1. Preprocess input data #
# =================================================================================== #
if i % 2 == 0:
try:
faces, origin_points = next(finetune_iter)
except StopIteration:
finetune_iter = iter(finetune_loader)
faces, origin_points = next(finetune_iter)
rand_idx = torch.randperm(origin_points.size(0))
target_points = origin_points[rand_idx]
target_faces = faces[rand_idx]
first_faces = faces.to(device)
target_faces = target_faces.to(device)
first_points = origin_points.to(device)
target_points = target_points.to(device)
else:
try:
first_faces, first_points = next(first_data_iters)
except StopIteration:
first_data_iters = iter(first_loader)
first_faces, first_points = next(first_data_iters)
try:
target_faces, target_points = next(data_iter)
except StopIteration:
data_iter = iter(loader)
target_faces, target_points = next(data_iter)
target_faces = target_faces.to(device)
first_faces = first_faces.to(device)
target_points = target_points.to(device)
first_points = first_points.to(device)
# =================================================================================== #
# 3. Train the discriminator #
# =================================================================================== #
# Real fake Dis
real_loss = torch.mean(softplus(-D(target_faces))) # big for real
faces_fake = G(first_faces, target_points)
fake_loss = torch.mean(softplus(D(faces_fake))) # small for fake
Dis_loss = real_loss + fake_loss
D_optimizer.zero_grad()
Dis_loss.backward()
D_optimizer.step()
# ID Dis
id_real_loss = torch.mean(
softplus(-id_D(first_faces, target_faces))) # big for real
faces_fake = G(first_faces, target_points)
id_fake_loss = torch.mean(softplus(id_D(first_faces,
faces_fake))) # small for fake
id_Dis_loss = id_real_loss + id_fake_loss
idD_optimizer.zero_grad()
id_Dis_loss.backward()
idD_optimizer.step()
# =================================================================================== #
# 3. Train the keypointsDetecter #
# =================================================================================== #
points_detect = points_G(target_faces)
detecter_loss_clear = torch.mean(
torch.abs(points_detect - target_points))
detecter_loss = detecter_loss_clear
points_G_optimizer.zero_grad()
detecter_loss.backward()
points_G_optimizer.step()
# =================================================================================== #
# 3. Train the generator #
# =================================================================================== #
n_critic = 1
if (i + 1) % n_critic == 0:
# Original-to-target domain.
faces_fake = G(first_faces, target_points)
predict_points = points_G(faces_fake)
g_keypoints_loss = torch.mean(
torch.abs(predict_points - target_points))
g_fake_loss = torch.mean(softplus(-D(faces_fake)))
# reconstructs = G(faces_fake, origin_points)
# g_cycle_loss = torch.mean(torch.abs(reconstructs - faces))
g_id_loss = torch.mean(softplus(-id_D(first_faces, faces_fake)))
l1_loss = torch.mean(torch.abs(faces_fake - target_faces))
feature_loss = torch.mean(
torch.abs(FEN(faces_fake) - FEN(target_faces)))
lambda_rec = config.lambda_rec # 2 to 4 to 8
lambda_l1 = config.lambda_l1
lambda_keypoint = config.lambda_keypoint # 100 to 50
lambda_fake = config.lambda_fake
lambda_id = config.lambda_id
lambda_feature = config.lambda_feature
g_loss = lambda_keypoint * g_keypoints_loss + lambda_fake*g_fake_loss \
+ lambda_id * g_id_loss + lambda_l1 * l1_loss + lambda_feature*feature_loss
G_optimizer.zero_grad()
g_loss.backward()
G_optimizer.step()
# Print out training information.
if (i + 1) % 4 == 0 or i % 8 == 0:
log.print(
"iter {} - d_real_loss {:.2}, d_fake_loss {:.2}, id_real_loss {:.2}, "
"id_fake_loss {:.2} , g_keypoints_loss {:.2}, "
"g_fake_loss {:.2}, g_id_loss {:.2}, L1_loss {:.2}, feature_loss {:.2}"
.format(i, real_loss.item(), fake_loss.item(),
id_real_loss.item(), id_fake_loss.item(),
lambda_keypoint * g_keypoints_loss.item(),
lambda_fake * g_fake_loss.item(),
lambda_id * g_id_loss.item(), lambda_l1 * l1_loss,
lambda_feature * feature_loss.item()))
sample_dir = "gan-sample-{}".format(version)
if not os.path.isdir(sample_dir):
os.mkdir(sample_dir)
if (i + 1) % 24 == 0 or i % 20 == 0:
with torch.no_grad():
target_point = target_points[0]
fake_face = faces_fake[0]
face = first_faces[0]
target_face = target_faces[0]
#reconstruct = reconstructs[0]
predict_point = predict_points[0]
sample_path_face = os.path.join(
sample_dir, '{}-image-face.jpg'.format(i + 1))
save_image(denorm(face.data.cpu()), sample_path_face)
sample_path_face = os.path.join(
sample_dir, '{}-image-targetface.jpg'.format(i + 1))
save_image(denorm(target_face.data.cpu()),
sample_path_face)
# sample_path_rec = os.path.join(sample_dir, '{}-image-reconstruct.jpg'.format(i + 1))
# save_image(denorm(reconstruct.data.cpu()), sample_path_rec)
sample_path_fake = os.path.join(
sample_dir, '{}-image-fake.jpg'.format(i + 1))
save_image(denorm(fake_face.data.cpu()), sample_path_fake)
sample_path_target = os.path.join(
sample_dir, '{}-image-target_point.jpg'.format(i + 1))
save_image(denorm(target_point.data.cpu()),
sample_path_target)
sample_path_predict_points = os.path.join(
sample_dir, '{}-image-predict_point.jpg'.format(i + 1))
save_image(denorm(predict_point.data.cpu()),
sample_path_predict_points)
print('Saved real and fake images into {}...'.format(
sample_path_face))
# Save model checkpoints.
model_save_dir = "ckpt-{}".format(version)
if (i + 1) % 1000 == 0:
if not os.path.isdir(model_save_dir):
os.mkdir(model_save_dir)
point_G_path = os.path.join(model_save_dir,
'{}-pG.ckpt'.format(i + 1))
torch.save(points_G.state_dict(), point_G_path)
G_path = os.path.join(model_save_dir, '{}-G.ckpt'.format(i + 1))
torch.save(G.state_dict(), G_path)
D_path = os.path.join(model_save_dir, '{}-D.ckpt'.format(i + 1))
torch.save(D.state_dict(), D_path)
idD_path = os.path.join(model_save_dir,
'{}-idD.ckpt'.format(i + 1))
torch.save(id_D.state_dict(), idD_path)
print('Saved model checkpoints into {}...'.format(model_save_dir))
def main(config):
# For fast training.
cudnn.benchmark = True
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
if len(sys.argv) > 1:
os.environ["CUDA_VISIBLE_DEVICES"] = config.gpu
else:
os.environ["CUDA_VISIBLE_DEVICES"] = "5"
global device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
version = config.version
beta1 = 0.5
beta2 = 0.999
loader = data_loader.get_loader(
"/media/data2/laixc/AI_DATA/expression_transfer/face12/crop_face",
"/media/data2/laixc/AI_DATA/expression_transfer/face12/points_face",
config)
points_G = LandMarksDetect()
G = ExpressionGenerater()
D = RealFakeDiscriminator()
FEN = FeatureExtractNet()
id_D = IdDiscriminator()
####### 载入预训练网络 ######
resume_iter = config.resume_iter
ckpt_dir = "/media/data2/laixc/Facial_Expression_GAN/ckpt-{}".format(
version)
log = Logger(os.path.join(ckpt_dir, 'log.txt'))
if os.path.exists(os.path.join(ckpt_dir, '{}-G.ckpt'.format(resume_iter))):
G_path = os.path.join(ckpt_dir, '{}-G.ckpt'.format(resume_iter))
G.load_state_dict(
torch.load(G_path, map_location=lambda storage, loc: storage))
D_path = os.path.join(ckpt_dir, '{}-D.ckpt'.format(resume_iter))
D.load_state_dict(
torch.load(D_path, map_location=lambda storage, loc: storage))
IdD_path = os.path.join(ckpt_dir, '{}-idD.ckpt'.format(resume_iter))
id_D.load_state_dict(
torch.load(IdD_path, map_location=lambda storage, loc: storage))
points_G_path = os.path.join(ckpt_dir,
'{}-pG.ckpt'.format(resume_iter))
points_G.load_state_dict(
torch.load(points_G_path,
map_location=lambda storage, loc: storage))
else:
resume_iter = 0
##### 训练face2keypoint ####
points_G_optimizer = torch.optim.Adam(points_G.parameters(),
lr=0.0001,
betas=(0.5, 0.9))
G_optimizer = torch.optim.Adam(G.parameters(), lr=0.0001, betas=(0.5, 0.9))
D_optimizer = torch.optim.Adam(D.parameters(), lr=0.001, betas=(0.5, 0.9))
idD_optimizer = torch.optim.Adam(id_D.parameters(),
lr=0.001,
betas=(0.5, 0.9))
G.to(device)
id_D.to(device)
D.to(device)
points_G.to(device)
FEN.to(device)
FEN.eval()
log.print(config)
# Start training from scratch or resume training.
start_iters = resume_iter
trigger_rec = 1
data_iter = iter(loader)
# Start training.
print('Start training...')
average_cnt = 0
average_g_loss = 0
for i in range(start_iters, 150000):
# =================================================================================== #
# 1. Preprocess input data #
# =================================================================================== #
#faces, origin_points = next(data_iter)
#_, target_points = next(data_iter)
try:
faces, origin_points = next(data_iter)
except StopIteration:
data_iter = iter(loader)
faces, origin_points = next(data_iter)
rand_idx = torch.randperm(origin_points.size(0))
target_points = origin_points[rand_idx]
target_faces = faces[rand_idx]
faces = faces.to(device)
target_faces = target_faces.to(device)
origin_points = origin_points.to(device)
target_points = target_points.to(device)
# =================================================================================== #
# 3. Train the discriminator #
# =================================================================================== #
# Real fake Dis
real_loss = -torch.mean(D(faces)) # big for real
faces_fake = G(faces, target_points)
fake_loss = torch.mean(D(faces_fake)) # small for fake
# Compute loss for gradient penalty.
alpha = torch.rand(faces.size(0), 1, 1, 1).to(device)
x_hat = (alpha * faces.data +
(1 - alpha) * faces_fake.data).requires_grad_(True)
out_src = D(x_hat)
d_loss_gp = gradient_penalty(out_src, x_hat)
lambda_gp = 10
Dis_loss = real_loss + fake_loss + lambda_gp * d_loss_gp
D_optimizer.zero_grad()
Dis_loss.backward()
D_optimizer.step()
# ID Dis
id_real_loss = -torch.mean(id_D(faces, target_faces)) # big for real
faces_fake = G(faces, target_points)
id_fake_loss = torch.mean(id_D(faces, faces_fake)) # small for fake
# Compute loss for gradient penalty.
alpha = torch.rand(target_faces.size(0), 1, 1, 1).to(device)
x_hat = (alpha * target_faces.data +
(1 - alpha) * faces_fake.data).requires_grad_(True)
out_src = id_D(faces, x_hat)
id_d_loss_gp = gradient_penalty(out_src, x_hat)
id_lambda_gp = 10
id_Dis_loss = id_real_loss + id_fake_loss + id_lambda_gp * id_d_loss_gp
idD_optimizer.zero_grad()
id_Dis_loss.backward()
idD_optimizer.step()
# if (i + 1) % 5 == 0:
# print("iter {} - d_real_loss {:.2}, d_fake_loss {:.2}, d_loss_gp {:.2}".format(i,real_loss.item(),
# fake_loss.item(),
# lambda_gp * d_loss_gp
# ))
# =================================================================================== #
# 3. Train the keypointsDetecter #
# =================================================================================== #
points_detect = points_G(faces)
detecter_loss_clear = torch.mean(
torch.abs(points_detect - origin_points))
# faces_fake = G(faces, target_points)
# reconstructs = G(faces_fake, origin_points)
# detecter_loss_vague = torch.mean(torch.abs(points_G(reconstructs) - origin_points))
#
# lambda_vague = 0.1
# detecter_loss = detecter_loss_clear + lambda_vague*detecter_loss_vague
detecter_loss = detecter_loss_clear
points_G_optimizer.zero_grad()
detecter_loss.backward()
points_G_optimizer.step()
# =================================================================================== #
# 3. Train the generator #
# =================================================================================== #
n_critic = 4
if (i + 1) % n_critic == 0:
while True:
# Original-to-target domain.
faces_fake = G(faces, target_points)
predict_points = points_G(faces_fake)
g_keypoints_loss = torch.mean(
torch.abs(predict_points - target_points))
g_fake_loss = -torch.mean(D(faces_fake))
# reconstructs = G(faces_fake, origin_points)
# g_cycle_loss = torch.mean(torch.abs(reconstructs - faces))
g_id_loss = -torch.mean(id_D(faces, faces_fake))
l1_loss = torch.mean(torch.abs(faces_fake - target_faces))
#feature_loss = l1_loss# = torch.mean(torch.abs(FEN(faces_fake) - FEN(target_faces)))
# 轮流训练
# if (i+1) % 50 == 0:
# trigger_rec = 1 - trigger_rec
# print("trigger_rec : ", trigger_rec)
lambda_rec = config.lambda_rec # 2 to 4 to 8
lambda_l1 = config.lambda_l1
lambda_keypoint = config.lambda_keypoint # 100 to 50
lambda_fake = config.lambda_fake
lambda_id = config.lambda_id
lambda_feature = config.lambda_feature
g_loss = lambda_keypoint * g_keypoints_loss + lambda_fake * g_fake_loss \
+ lambda_id * g_id_loss + lambda_l1 * l1_loss# + lambda_feature * feature_loss
G_optimizer.zero_grad()
g_loss.backward()
G_optimizer.step()
# 加权平均
if average_cnt == 0:
average_g_loss = g_loss.item()
else:
average_g_loss = 4 / 5 * average_g_loss + 1 / 5 * g_loss.item(
)
average_cnt = average_cnt + 1
if g_loss.item() < average_g_loss:
print("<<< g_loss {} < average_g_loss {}".format(
g_loss.item(), average_g_loss))
break
else:
print(">>> g_loss {} > average_g_loss {}".format(
g_loss.item(), average_g_loss))
# Print out training information.
if (i + 1) % 4 == 0:
log.print(
"iter {} - d_real_loss {:.2}, d_fake_loss {:.2}, d_loss_gp {:.2}, id_real_loss {:.2}, "
"id_fake_loss {:.2}, id_loss_gp {:.2} , g_keypoints_loss {:.2}, "
"g_fake_loss {:.2}, g_id_loss {:.2}, L1_loss {:.2}".format(
i, real_loss.item(), fake_loss.item(),
lambda_gp * d_loss_gp, id_real_loss.item(),
id_fake_loss.item(), id_lambda_gp * id_d_loss_gp,
lambda_keypoint * g_keypoints_loss.item(),
lambda_fake * g_fake_loss.item(),
lambda_id * g_id_loss.item(), lambda_l1 * l1_loss))
sample_dir = "gan-sample-{}".format(version)
if not os.path.isdir(sample_dir):
os.mkdir(sample_dir)
if (i + 1) % 24 == 0:
with torch.no_grad():
target_point = target_points[0]
fake_face = faces_fake[0]
face = faces[0]
#reconstruct = reconstructs[0]
predict_point = predict_points[0]
sample_path_face = os.path.join(
sample_dir, '{}-image-face.jpg'.format(i + 1))
save_image(denorm(face.data.cpu()), sample_path_face)
# sample_path_rec = os.path.join(sample_dir, '{}-image-reconstruct.jpg'.format(i + 1))
# save_image(denorm(reconstruct.data.cpu()), sample_path_rec)
sample_path_fake = os.path.join(
sample_dir, '{}-image-fake.jpg'.format(i + 1))
save_image(denorm(fake_face.data.cpu()), sample_path_fake)
sample_path_target = os.path.join(
sample_dir, '{}-image-target_point.jpg'.format(i + 1))
save_image(denorm(target_point.data.cpu()),
sample_path_target)
sample_path_predict_points = os.path.join(
sample_dir, '{}-image-predict_point.jpg'.format(i + 1))
save_image(denorm(predict_point.data.cpu()),
sample_path_predict_points)
print('Saved real and fake images into {}...'.format(
sample_path_face))
# Save model checkpoints.
model_save_dir = "ckpt-{}".format(version)
if (i + 1) % 1000 == 0:
if not os.path.isdir(model_save_dir):
os.mkdir(model_save_dir)
point_G_path = os.path.join(model_save_dir,
'{}-pG.ckpt'.format(i + 1))
torch.save(points_G.state_dict(), point_G_path)
G_path = os.path.join(model_save_dir, '{}-G.ckpt'.format(i + 1))
torch.save(G.state_dict(), G_path)
D_path = os.path.join(model_save_dir, '{}-D.ckpt'.format(i + 1))
torch.save(D.state_dict(), D_path)
idD_path = os.path.join(model_save_dir,
'{}-idD.ckpt'.format(i + 1))
torch.save(id_D.state_dict(), idD_path)
print('Saved model checkpoints into {}...'.format(model_save_dir))
def main(config):
# For fast training.
cudnn.benchmark = True
os.environ["CUDA_DEVICE_ORDER"] = "PCI_BUS_ID"
if len(sys.argv) > 1:
os.environ["CUDA_VISIBLE_DEVICES"] = config.gpu
else:
os.environ["CUDA_VISIBLE_DEVICES"] = "5"
global device
device = torch.device('cuda' if torch.cuda.is_available() else 'cpu')
version = config.version
beta1 = 0.5
beta2 = 0.999
loader = data_loader.get_loader(
"/media/data2/laixc/AI_DATA/expression_transfer/face12/crop_face",
"/media/data2/laixc/AI_DATA/expression_transfer/face12/points_face",
config)
G = ExpressionGenerater()
FEN = FeatureExtractNet()
color_D = SNResIdDiscriminator()
####### 载入预训练网络 ######
resume_iter = config.resume_iter
ckpt_dir = "/media/data2/laixc/Facial_Expression_GAN/ckpt-{}".format(
version)
if not os.path.isdir(ckpt_dir):
os.mkdir(ckpt_dir)
log = Logger(os.path.join(ckpt_dir, 'log.txt'))
if os.path.exists(os.path.join(ckpt_dir, '{}-G.ckpt'.format(resume_iter))):
G_path = os.path.join(ckpt_dir, '{}-G.ckpt'.format(resume_iter))
G.load_state_dict(
torch.load(G_path, map_location=lambda storage, loc: storage))
IdD_path = os.path.join(ckpt_dir, '{}-idD.ckpt'.format(resume_iter))
color_D.load_state_dict(
torch.load(IdD_path, map_location=lambda storage, loc: storage))
else:
resume_iter = 0
##### 训练face2keypoint ####
G_optimizer = torch.optim.Adam(G.parameters(), lr=0.0001, betas=(0.5, 0.9))
idD_optimizer = torch.optim.Adam(color_D.parameters(),
lr=0.001,
betas=(0.5, 0.9))
G.to(device)
color_D.to(device)
FEN.to(device)
FEN.eval()
log.print(config)
# Start training from scratch or resume training.
start_iters = resume_iter
trigger_rec = 1
data_iter = iter(loader)
# Start training.
print('Start training...')
for i in range(start_iters, 150000):
# =================================================================================== #
# 1. Preprocess input data #
# =================================================================================== #
#faces, origin_points = next(data_iter)
#_, target_points = next(data_iter)
try:
color_faces, faces = next(data_iter)
except StopIteration:
data_iter = iter(loader)
color_faces, faces = next(data_iter)
rand_idx = torch.randperm(faces.size(0))
condition_faces = faces[rand_idx]
faces = faces.to(device)
color_faces = color_faces.to(device)
condition_faces = condition_faces.to(device)
# =================================================================================== #
# 3. Train the discriminator #
# =================================================================================== #
# ID Dis
id_real_loss = torch.mean(
softplus(-color_D(faces, condition_faces))) # big for real
faces_fake = G(color_faces, condition_faces)
id_fake_loss = torch.mean(
softplus(color_D(faces_fake, condition_faces))) # small for fake
id_Dis_loss = id_real_loss + id_fake_loss
idD_optimizer.zero_grad()
id_Dis_loss.backward()
idD_optimizer.step()
# =================================================================================== #
# 3. Train the generator #
# =================================================================================== #
n_critic = 1
if (i + 1) % n_critic == 0:
# Original-to-target domain.
faces_fake = G(color_faces, condition_faces)
g_id_loss = torch.mean(
softplus(-color_D(faces_fake, condition_faces)))
l1_loss = torch.mean(
torch.abs(faces_fake - faces)) + (1 - ssim(faces_fake, faces))
feature_loss = torch.mean(torch.abs(FEN(faces_fake) - FEN(faces)))
lambda_l1 = config.lambda_l1
lambda_id = config.lambda_id
lambda_feature = config.lambda_feature
g_loss = lambda_id * g_id_loss + lambda_l1 * l1_loss + lambda_feature * feature_loss
G_optimizer.zero_grad()
g_loss.backward()
G_optimizer.step()
# Print out training information.
if (i + 1) % 4 == 0:
log.print(
"iter {} - id_real_loss {:.2}, "
"id_fake_loss {:.2} , g_id_loss {:.2}, L1_loss {:.2}, feature_loss {:.2}"
.format(i, id_real_loss.item(), id_fake_loss.item(),
lambda_id * g_id_loss.item(), lambda_l1 * l1_loss,
lambda_feature * feature_loss.item()))
sample_dir = "gan-sample-{}".format(version)
if not os.path.isdir(sample_dir):
os.mkdir(sample_dir)
if (i + 1) % 24 == 0:
with torch.no_grad():
fake_face = faces_fake[0]
condition_face = condition_faces[0]
color_face = color_faces[0]
#reconstruct = reconstructs[0]
sample_path_face = os.path.join(
sample_dir, '{}-image-face.jpg'.format(i + 1))
save_image(denorm(condition_face.data.cpu()),
sample_path_face)
sample_path_rec = os.path.join(
sample_dir, '{}-image-color.jpg'.format(i + 1))
save_image(denorm(color_face.data.cpu()), sample_path_rec)
sample_path_fake = os.path.join(
sample_dir, '{}-image-fake.jpg'.format(i + 1))
save_image(denorm(fake_face.data.cpu()), sample_path_fake)
print('Saved real and fake images into {}...'.format(
sample_path_face))
# Save model checkpoints.
model_save_dir = "ckpt-{}".format(version)
if (i + 1) % 1000 == 0:
if not os.path.isdir(model_save_dir):
os.mkdir(model_save_dir)
G_path = os.path.join(model_save_dir, '{}-G.ckpt'.format(i + 1))
torch.save(G.state_dict(), G_path)
idD_path = os.path.join(model_save_dir,
'{}-idD.ckpt'.format(i + 1))
torch.save(color_D.state_dict(), idD_path)
print('Saved model checkpoints into {}...'.format(model_save_dir))
