def init_models(self):
""" Models: G_UM, G_MU, D_M, D_U """
# Networks
self.G_UM = networks.define_G(input_nc=1, output_nc=1, ngf=self.config.g_conv_dim,
which_model_netG=self.config.which_model_netG, norm='batch', init_type='normal',
gpu_ids=self.gpu_ids)
self.G_MU = networks.define_G(input_nc=1, output_nc=1, ngf=self.config.g_conv_dim,
which_model_netG=self.config.which_model_netG, norm='batch', init_type='normal',
gpu_ids=self.gpu_ids)
self.D_M = networks.define_D(input_nc=1, ndf=self.config.d_conv_dim,
which_model_netD=self.config.which_model_netD,
n_layers_D=3, norm='instance', use_sigmoid=True, init_type='normal',
gpu_ids=self.gpu_ids)
self.D_U = networks.define_D(input_nc=1, ndf=self.config.d_conv_dim,
which_model_netD=self.config.which_model_netD,
n_layers_D=3, norm='instance', use_sigmoid=True, init_type='normal',
gpu_ids=self.gpu_ids)
# Optimisers
# single optimiser for both generators
self.G_optim = optim.Adam(itertools.chain(self.G_UM.parameters(), self.G_MU.parameters()),
self.config.lr, betas=(self.config.beta1, self.config.beta2))
self.D_M_optim = optim.Adam(self.D_M.parameters(),
lr=self.config.lr, betas=(self.config.beta1, self.config.beta2))
self.D_U_optim = optim.Adam(self.D_U.parameters(),
lr=self.config.lr, betas=(self.config.beta1, self.config.beta2))
self.optimizers = [self.G_optim, self.D_M_optim, self.D_U_optim]
# Schedulers
self.schedulers = []
for optimizer in self.optimizers:
self.schedulers.append(networks.get_scheduler(optimizer, self.config))
def TrainDiscriminator(real_A: tp.Numpy.Placeholder(
(1, 3, args.crop_size, args.crop_size),
dtype=flow.float32), fake_A: tp.Numpy.Placeholder(
(1, 3, args.crop_size, args.crop_size), dtype=flow.float32),
real_B: tp.Numpy.Placeholder(
(1, 3, args.crop_size, args.crop_size),
dtype=flow.float32),
fake_B: tp.Numpy.Placeholder(
(1, 3, args.crop_size, args.crop_size),
dtype=flow.float32)):
with flow.scope.placement("gpu", "0:0-0"):
# Calculate GAN loss for discriminator D_A
# Real
pred_real_B = networks.define_D(real_B,
"netD_A",
ndf=args.ndf,
n_layers_D=3,
trainable=True,
reuse=True)
loss_D_A_real = networks.GANLoss(pred_real_B, True)
# Fake
pred_fake_B = networks.define_D(fake_B,
"netD_A",
ndf=args.ndf,
n_layers_D=3,
trainable=True,
reuse=True)
loss_D_A_fake = networks.GANLoss(pred_fake_B, False)
# Combined loss and calculate gradients
loss_D_A = (loss_D_A_real + loss_D_A_fake) * 0.5
# Calculate GAN loss for discriminator D_B
# Real
pred_real_A = networks.define_D(real_A,
"netD_B",
ndf=args.ndf,
n_layers_D=3,
trainable=True,
reuse=True)
loss_D_B_real = networks.GANLoss(pred_real_A, True)
# Fake
pred_fake_A = networks.define_D(fake_A,
"netD_B",
ndf=args.ndf,
n_layers_D=3,
trainable=True,
reuse=True)
loss_D_B_fake = networks.GANLoss(pred_fake_A, False)
# Combined loss and calculate gradients
loss_D_B = (loss_D_B_real + loss_D_B_fake) * 0.5
loss_D = loss_D_A + loss_D_B
flow.optimizer.Adam(flow.optimizer.PiecewiseConstantScheduler(
[], [args.learning_rate]),
beta1=0.5).minimize(loss_D)
return loss_D
def __init__(self, opt):
"""Initialize the CycleGAN class.
Parameters:
opt (Option class)-- stores all the experiment flags; needs to be a subclass of BaseOptions
"""
BaseModel.__init__(self, opt)
# specify the training losses you want to print out. The training/test scripts will call <BaseModel.get_current_losses>
self.loss_names = ['D_A', 'G_A', 'cycle_A', 'idt_A', 'D_B', 'G_B', 'cycle_B', 'idt_B']
# # specify the images you want to save/display. The training/test scripts will call <BaseModel.get_current_visuals>
# visual_names_A = ['real_A', 'fake_B', 'rec_A']
# visual_names_B = ['real_B', 'fake_A', 'rec_B']
# if self.isTrain and self.opt.lambda_identity > 0.0: # if identity loss is used, we also visualize idt_B=G_A(B) ad idt_A=G_A(B)
# visual_names_A.append('idt_B')
# visual_names_B.append('idt_A')
#
# self.visual_names = visual_names_A + visual_names_B # combine visualizations for A and B
# specify the models you want to save to the disk. The training/test scripts will call <BaseModel.save_networks> and <BaseModel.load_networks>.
if self.isTrain:
self.model_names = ['G_A', 'G_B', 'D_A', 'D_B']
else: # during test time, only load Gs
self.model_names = ['G_A', 'G_B']
# define networks (both Generators and discriminators)
# Code (vs. paper): G_A (G), G_B (F), D_A (D_Y), D_B (D_X)
# input file shape (batch, length, dims-256)
self.netG_A = networks.define_G(opt.input_nc, opt.output_nc, opt.ngf, opt.netG, opt.norm,
not opt.no_dropout, opt.init_type, opt.init_gain, self.gpu_ids)
self.netG_B = networks.define_G(opt.output_nc, opt.input_nc, opt.ngf, opt.netG, opt.norm,
not opt.no_dropout, opt.init_type, opt.init_gain, self.gpu_ids)
if self.isTrain: # define discriminators
self.netD_A = networks.define_D(opt.output_nc, opt.ndf, opt.netD,
opt.n_layers_D, opt.norm, opt.init_type, opt.init_gain, self.gpu_ids)
self.netD_B = networks.define_D(opt.input_nc, opt.ndf, opt.netD,
opt.n_layers_D, opt.norm, opt.init_type, opt.init_gain, self.gpu_ids)
if self.isTrain:
if opt.lambda_identity > 0.0: # only works when input and output images have the same number of channels
assert(opt.input_nc == opt.output_nc)
self.fake_A_pool = AudioPool(opt.pool_size) # create image buffer to store previously generated images
self.fake_B_pool = AudioPool(opt.pool_size) # create image buffer to store previously generated images
# define loss functions
self.criterionGAN = networks.GANLoss(opt.gan_mode).to(self.device) # define GAN loss.
self.criterionCycle = nn.L1Loss()
self.criterionIdt = nn.L1Loss()
# initialize optimizers; schedulers will be automatically created by function <BaseModel.setup>.
self.optimizer_G = torch.optim.Adam(itertools.chain(self.netG_A.parameters(), self.netG_B.parameters()), lr=opt.lr, betas=(opt.beta1, 0.999))
self.optimizer_D = torch.optim.Adam(itertools.chain(self.netD_A.parameters(), self.netD_B.parameters()), lr=opt.lr, betas=(opt.beta1, 0.999))
self.optimizers.append(self.optimizer_G)
self.optimizers.append(self.optimizer_D)
def initialize(self, opt, writer=None):
BaseModel.initialize(self, opt)
self.writer = writer
self.num_step = 0
self.opt = opt
if self.opt.use_lbp_network:
self.model_names = ['G', 'LBP', 'D', 'D2']
else:
self.model_names = ['G', 'D']
self.netG = networks.define_G(self.opt)
if self.opt.use_lbp_network:
self.netLBP = networks.define_LBP(self.opt)
self.netD = networks.define_D(
opt.input_nc, opt.ndf, self.opt.device) # Discriminator for netG
if self.opt.use_lbp_network:
self.netD2 = networks.define_D(
opt.input_nc - 2, opt.ndf,
self.opt.device) # Discriminator for netLBP
self.vgg16_extractor = util.VGG16FeatureExtractor().to(self.opt.device)
self.criterionGAN = networks.GANLoss(gan_type=opt.gan_type).to(
self.opt.device)
self.criterionL1 = torch.nn.L1Loss()
self.criterionL2 = torch.nn.MSELoss()
self.criterionL1_mask = networks.Discounted_L1(opt).to(self.opt.device)
self.criterionL2_style_loss = torch.nn.MSELoss()
self.criterionL2_perceptual_loss = torch.nn.MSELoss()
self.optimizer_G = torch.optim.Adam(self.netG.parameters(),
lr=opt.lr,
betas=(0.5, 0.999))
if self.opt.use_lbp_network:
self.optimizer_LBP = torch.optim.Adam(self.netLBP.parameters(),
lr=opt.lr,
betas=(0.5, 0.999))
self.optimizer_D = torch.optim.Adam(self.netD.parameters(),
lr=opt.lr,
betas=(0.5, 0.999))
if self.opt.use_lbp_network:
self.optimizer_D2 = torch.optim.Adam(self.netD2.parameters(),
lr=opt.lr,
betas=(0.5, 0.999))
_, self.rand_t, self.rand_l = util.create_rand_mask(self.opt)
def init_models(self):
# Networks
self.G_AB = networks.define_G(
input_nc=self.config.input_nc,
output_nc=self.config.output_nc,
ngf=self.config.g_conv_dim,
which_model_netG=self.config.which_model_netG,
norm='batch',
init_type='normal',
gpu_ids=self.gpu_ids)
self.D_B = networks.define_D(
input_nc=self.config.input_nc,
ndf=self.config.d_conv_dim,
which_model_netD=self.config.which_model_netD,
n_layers_D=3,
norm='instance',
use_sigmoid=True,
init_type='normal',
gpu_ids=self.gpu_ids,
image_size=self.config.image_size)
# Optimisers
self.G_optim = optim.Adam(self.G_AB.parameters(),
lr=self.config.lr,
betas=(self.config.beta1, self.config.beta2))
self.D_optim = optim.Adam(self.D_B.parameters(),
lr=self.config.lr,
betas=(self.config.beta1, self.config.beta2))
self.optimizers = [self.G_optim, self.D_optim]
# Schedulers
self.schedulers = []
for optimizer in self.optimizers:
self.schedulers.append(
networks.get_scheduler(optimizer, self.config))
def __init__(self, args):
super().__init__(args)
if args.mode == 'train':
self.D = define_D(args)
self.D = self.D.to(self.device)
self.fake_right_pool = ImagePool(50)
self.criterion = define_generator_loss(args)
self.criterion = self.criterion.to(self.device)
self.criterionGAN = define_discriminator_loss(args)
self.criterionGAN = self.criterionGAN.to(self.device)
self.optimizer_G = optim.Adam(self.G.parameters(),
lr=args.learning_rate)
self.optimizer_D = optim.SGD(self.D.parameters(),
lr=args.learning_rate)
# Load the correct networks, depending on which mode we are in.
if args.mode == 'train':
self.model_names = ['G', 'D']
self.optimizer_names = ['G', 'D']
else:
self.model_names = ['G']
self.loss_names = ['G', 'G_MonoDepth', 'G_GAN', 'D']
self.losses = {}
if self.args.resume:
self.load_checkpoint()
if 'cuda' in self.device:
torch.cuda.synchronize()
def __init__(self, args):
super().__init__(args)
if args.mode == 'train':
self.D = define_D(args)
self.D = self.D.to(self.device)
self.fake_right_pool = ImagePool(50)
self.criterionMonoDepth = define_generator_loss(args)
self.criterionMonoDepth = self.criterionMonoDepth.to(self.device)
self.criterionGAN = define_discriminator_loss(args)
self.criterionGAN = self.criterionGAN.to(self.device)
# Load the correct networks, depending on which mode we are in.
if args.mode == 'train':
self.model_names = ['G', 'D']
self.optimizer_names = ['G', 'D']
else:
self.model_names = ['G']
self.loss_names = ['G', 'D']
# We do Resume Training for this architecture.
if args.resume == '':
pass
else:
self.load_checkpoint(load_optim=False)
if args.mode == 'train':
# After resuming, set new optimizers.
self.optimizer_G = optim.SGD(self.G.parameters(),
lr=args.learning_rate)
self.optimizer_D = optim.SGD(self.D.parameters(),
lr=args.learning_rate)
# Reset epoch.
self.start_epoch = 0
self.trainG = True
self.count_trained_G = 0
self.count_trained_D = 0
self.regime = args.resume_regime
if 'cuda' in self.device:
torch.cuda.synchronize()
def __init__(self, input_nc):
super(FogNet, self).__init__()
self.atmconv1x1 = nn.Conv2d(input_nc,
input_nc,
kernel_size=1,
stride=1,
padding=0)
self.atmnet = define_D(input_nc,
64,
'n_estimator',
n_layers_D=5,
norm='batch',
use_sigmoid=True,
gpu_ids=[])
self.transnet = TransUNet(input_nc, 1)
self.htanh = nn.Hardtanh(0, 1)
self.relu1 = ReLU1()
self.relu = nn.ReLU()
def initialize(self, opt, train_mode=True):
# Model transforms from A --> B and uses Adv as the
# adversarial example.
BaseModel.initialize(self, opt)
self.train_mode = train_mode
# define tensors
self.input_B = self.Tensor(opt['batchSize'], opt['input_nc'],
opt['B_height'], opt['B_width'])
self.input_A = self.Tensor(opt['batchSize'], opt['output_nc'],
opt['A_height'], opt['A_width'])
# load/define networks
self.netG = networks.define_G(opt['input_nc'], opt['output_nc'],
opt['ngf'], opt['norm'], self.gpu_ids)
if self.train_mode:
use_sigmoid = opt['no_lsgan']
self.netD = networks.define_D(opt['input_nc'] + opt['output_nc'],
opt['ndf'], opt['which_model_netD'],
opt['n_layers_D'], use_sigmoid,
self.gpu_ids)
if self.train_mode:
# self.fake_AB_pool = ImagePool(opt['pool_size'])
self.old_lr = opt['lr']
# define loss functions
self.criterionGAN = networks.GANLoss(use_lsgan=not opt['no_lsgan'],
tensor=self.Tensor)
self.content_loss = torch.nn.MSELoss()
# initialize optimizers
self.optimizer_G = torch.optim.Adam(self.netG.parameters(),
lr=opt['lr'],
betas=(opt['beta1'], 0.999))
self.optimizer_D = torch.optim.Adam(self.netD.parameters(),
lr=opt['lr'],
betas=(opt['beta1'], 0.999))
print('---------- Networks initialized -------------')
networks.print_network(self.netG)
networks.print_network(self.netD)
print('-----------------------------------------------')
def __init__(self, args):
super().__init__(args)
if args.mode == 'train':
self.D = define_D(args)
self.D = self.D.to(self.device)
self.criterionMonoDepth = define_generator_loss(args)
self.criterionMonoDepth = self.criterionMonoDepth.to(self.device)
self.optimizer_G = optim.Adam(self.G.parameters(),
lr=args.learning_rate)
self.optimizer_D = optim.SGD(self.D.parameters(),
lr=args.learning_rate)
self.one = torch.tensor(1.0).to(self.device)
self.mone = (self.one * -1).to(self.device)
self.loader_iterator = None
self.current_epoch = 0
self.critic_iters = args.wgan_critics_num
# Load the correct networks, depending on which mode we are in.
if args.mode == 'train':
self.model_names = ['G', 'D']
self.optimizer_names = ['G', 'D']
else:
self.model_names = ['G']
self.loss_names = ['G', 'G_MonoDepth', 'G_GAN', 'D', 'D_Wasserstein']
self.losses = {}
if self.args.resume:
self.load_checkpoint()
if 'cuda' in self.device:
torch.cuda.synchronize()
train_set = get_dataset(path=opt.dataset)
training_data_loader = DataLoader(dataset=train_set,
num_workers=opt.threads,
batch_size=opt.batch_size,
shuffle=True)
device = torch.device("cuda:0" if opt.cuda else "cpu")
print('===> Building models')
net_g = define_G(opt.input_nc,
opt.output_nc,
opt.ngf,
'batch',
False,
'normal',
0.02,
gpu_id=device)
net_d = define_D(opt.input_nc + opt.output_nc, opt.ndf, 'basic', gpu_id=device)
criterionGAN = GANLoss().to(device)
criterionL1 = nn.L1Loss().to(device)
criterionMSE = nn.MSELoss().to(device)
# setup optimizer
optimizer_g = optim.Adam(net_g.parameters(),
lr=opt.lr,
betas=(opt.beta1, 0.999))
optimizer_d = optim.Adam(net_d.parameters(),
lr=opt.lr,
betas=(opt.beta1, 0.999))
net_g_scheduler = get_scheduler(optimizer_g, opt)
net_d_scheduler = get_scheduler(optimizer_d, opt)
face_descriptor = FaceDescriptor().to(device)
def initialize(self, opt):
super(DesignerGAN, self).initialize(opt)
###################################
# define data tensors
###################################
# self.input['img'] = self.Tensor()
# self.input['img_attr'] = self.Tensor()
# self.input['lm_map'] = self.Tensor()
# self.input['seg_mask'] = self.Tensor()
# self.input['attr_label'] = self.Tensor()
# self.input['id'] = []
###################################
# load/define networks
###################################
# Todo modify networks.define_G
# 1. add specified generator networks
self.netG = networks.define_G(opt)
self.netAE, self.opt_AE = network_loader.load_attribute_encoder_net(
id=opt.which_model_AE, gpu_ids=opt.gpu_ids)
if opt.which_model_FeatST != 'none':
self.netFeatST, self.opt_FeatST = network_loader.load_feature_spatial_transformer_net(
id=opt.which_model_FeatST, gpu_ids=opt.gpu_ids)
self.use_FeatST = True
# assert self.opt_FeatST.shape_encode == self.opt.shape_encode, 'GAN model and FeatST model has different shape encode mode'
# assert self.opt_FeatST.input_mask_mode == self.opt.input_mask_mode, 'GAN model and FeatST model has different segmentation input mode'
else:
self.use_FeatST = False
if self.is_train:
self.netD = networks.define_D(opt)
if opt.which_model_init_netG != 'none' and not opt.continue_train:
self.load_network(self.netG, 'G', 'latest',
opt.which_model_init_netG)
if not self.is_train or opt.continue_train:
self.load_network(self.netG, 'G', opt.which_epoch)
if self.is_train:
self.load_network(self.netD, 'D', opt.which_epoch)
if self.is_train:
self.fake_pool = ImagePool(opt.pool_size)
###################################
# define loss functions and loss buffers
###################################
if opt.which_gan in {'dcgan', 'lsgan'}:
self.crit_GAN = networks.GANLoss(
use_lsgan=opt.which_gan == 'lsgan', tensor=self.Tensor)
else:
# WGAN loss will be calculated in self.backward_D_wgangp and self.backward_G
self.crit_GAN = None
self.crit_L1 = nn.L1Loss()
self.crit_attr = nn.BCELoss()
self.loss_functions = []
self.loss_functions.append(self.crit_GAN)
self.loss_functions.append(self.crit_L1)
self.loss_functions.append(self.crit_attr)
if self.opt.loss_weight_vgg > 0:
self.crit_vgg = networks.VGGLoss(self.gpu_ids)
self.loss_functions.append(self.crit_vgg)
###################################
# create optimizers
###################################
self.schedulers = []
self.optimizers = []
self.optim_G = torch.optim.Adam(self.netG.parameters(),
lr=opt.lr,
betas=(opt.beta1, opt.beta2))
self.optim_D = torch.optim.Adam(self.netD.parameters(),
lr=opt.lr,
betas=(opt.beta1, opt.beta2))
self.optimizers.append(self.optim_G)
self.optimizers.append(self.optim_D)
for optim in self.optimizers:
self.schedulers.append(networks.get_scheduler(optim, opt))
# color transformation from std to imagenet
# img_imagenet = img_std * a + b
self.trans_std_to_imagenet = {
'a':
Variable(self.Tensor([0.5 / 0.229, 0.5 / 0.224, 0.5 / 0.225]),
requires_grad=False).view(3, 1, 1),
'b':
Variable(self.Tensor([(0.5 - 0.485) / 0.229, (0.5 - 0.456) / 0.224,
(0.5 - 0.406) / 0.225]),
requires_grad=False).view(3, 1, 1)
}
print('===> Loading datasets')
root_path = "dataset/"
train_set = get_training_set(root_path + dataset)
test_set = get_test_set(root_path + dataset)
training_data_loader = DataLoader(dataset=train_set,
num_workers=threads,
batch_size=batchSize,
shuffle=True)
testing_data_loader = DataLoader(dataset=test_set,
num_workers=threads,
batch_size=testBatchSize,
shuffle=False)
print('===> Building model')
netG = define_G(input_nc, output_nc, ngf, 'batch', False, [0])
netD = define_D(input_nc + output_nc, ndf, 'batch', False, [0])
criterionGAN = GANLoss()
criterionL1 = nn.L1Loss()
criterionMSE = nn.MSELoss()
# setup optimizer
optimizerG = optim.Adam(netG.parameters(), lr=lr, betas=(beta1, 0.999))
optimizerD = optim.Adam(netD.parameters(), lr=lr, betas=(beta1, 0.999))
print('---------- Networks initialized -------------')
print_network(netG)
print_network(netD)
print('-----------------------------------------------')
real_a = torch.FloatTensor(batchSize, input_nc, 256, 256)
def __init__(self, hyperparameters):
super(myMUNIT_Trainer, self).__init__()
lr = hyperparameters['lr']
# Initiate the networks
self.style_dim = hyperparameters['gen']['style_dim']
self.enc_a = networks.define_E(input_nc=3,
output_nc=self.style_dim,
ndf=64) # encoder for domain a
self.enc_b = networks.define_E(input_nc=3,
output_nc=self.style_dim,
ndf=64) # encoder for domain b
self.gen_a = networks.define_G(input_nc=3,
output_nc=3,
nz=self.style_dim,
ngf=64) # generator for domain a
self.gen_b = networks.define_G(input_nc=3,
output_nc=3,
nz=self.style_dim,
ngf=64) # generator for domain b
self.dis_a = networks.define_D(input_nc=3,
ndf=64,
norm='instance',
num_Ds=2) # discriminator for domain a
self.dis_b = networks.define_D(input_nc=3,
ndf=64,
norm='instance',
num_Ds=2) # discriminator for domain b
self.netVGGF = networks.define_VGGF()
self.instancenorm = nn.InstanceNorm2d(512, affine=False)
# Initiate the criterions or loss functions
self.criterionGAN = networks.GANLoss(
mse_loss=True,
tensor=torch.cuda.FloatTensor) # criterion GAN adversarial loss
self.wGANloss = networks.wGANLoss(
tensor=torch.cuda.FloatTensor) # wGAN adversarial loss
self.criterionL1 = torch.nn.L1Loss() # L1 loss
self.criterionL2 = networks.L2Loss() # L2 loss
self.criterionZ = torch.nn.L1Loss() # L1 loss between code
self.criterionC = networks.ContentLoss(
vgg_features=self.netVGGF) # content loss
self.criterionS = networks.StyleLoss(
vgg_features=self.netVGGF) # style loss
self.criterionC_l = networks.ContentLoss(
vgg_features=self.netVGGF) # local content loss
self.criterionS_l = networks.StyleLoss(
vgg_features=self.netVGGF) # local style loss
self.criterionHisogram = networks.HistogramLoss(
vgg_features=self.netVGGF) # histogram loss
self.Feature_map_im = networks.Feature_map_im(
vgg_features=self.netVGGF) # show feature map
# fix the noise used in sampling
self.s_a = torch.randn(8, self.style_dim, 1, 1).cuda()
self.s_b = torch.randn(8, self.style_dim, 1, 1).cuda()
# Setup the optimizers
beta1 = hyperparameters['beta1']
beta2 = hyperparameters['beta2']
dis_params = list(self.dis_a.parameters()) + list(
self.dis_b.parameters())
gen_params = list(self.gen_a.parameters()) + list(
self.gen_b.parameters())
self.dis_opt = torch.optim.Adam(
[p for p in dis_params if p.requires_grad],
lr=lr,
betas=(beta1, beta2),
weight_decay=hyperparameters['weight_decay'])
self.gen_opt = torch.optim.Adam(
[p for p in gen_params if p.requires_grad],
lr=lr,
betas=(beta1, beta2),
weight_decay=hyperparameters['weight_decay'])
self.dis_scheduler = get_scheduler(self.dis_opt, hyperparameters)
self.gen_scheduler = get_scheduler(self.gen_opt, hyperparameters)
# Load VGG model if needed
if 'vgg_w' in hyperparameters.keys() and hyperparameters['vgg_w'] > 0:
self.vgg = load_vgg16(hyperparameters['vgg_model_path'] +
'/models')
self.vgg.eval()
for param in self.vgg.parameters():
param.requires_grad = False
training_data_loader = DataLoader(dataset=train_set,
num_workers=opt.threads,
batch_size=opt.batchSize,
shuffle=True)
testing_data_loader = DataLoader(dataset=test_set,
num_workers=opt.threads,
batch_size=opt.testBatchSize,
shuffle=False)
train_logger = Logger(opt.nEpochs, len(training_data_loader), opt.date)
test_logger = Logger(opt.nEpochs, len(testing_data_loader), opt.date)
print('===> Building model')
netG = define_G(opt.input_nc, opt.output_nc, opt.ngf, opt.batch_mode, False,
[0])
netD = define_D(opt.input_nc + opt.output_nc, opt.ndf, opt.batch_mode, False,
[0])
criterionGAN = GANLoss()
criterionL1 = nn.L1Loss()
criterionMSE = nn.MSELoss()
# setup optimizer
optimizerG = optim.Adam(netG.parameters(),
lr=opt.glr,
betas=(opt.beta1, 0.999))
optimizerD = optim.Adam(netD.parameters(),
lr=opt.dlr,
betas=(opt.beta1, 0.999))
print('---------- Networks initialized -------------')
#print_network(netG)
parser.add_argument('--data_order', nargs='+', default=['B', 'A'])
opt = parser.parse_args()
print(opt)
if torch.cuda.is_available() and not opt.cuda:
print(
"WARNING: You have a CUDA device, so you should probably run with --cuda"
)
###### Definition of variables ######
# Networks
netG = Generator(opt.output_nc, opt.input_nc)
# netG = GeneratorNORM(opt.output_nc, opt.input_nc)
# netG = GeneratorCat(opt.output_nc, opt.input_nc)
netD_B = networks.define_D(opt.input_nc, opt.ndf, opt.netD, opt.n_layers_D,
opt.norm, False)
device = 'cpu'
if opt.cuda:
netG.cuda()
netD_B.cuda()
device = 'cuda'
# netG.apply(weights_init_normal)
# netD_A.apply(weights_init_normal)
netD_B.apply(weights_init_normal)
# Lossess
criterionGAN = networks.GANLoss().to(device)
criterion_MSE = torch.nn.MSELoss(reduce=False)
def __init__(self, p):
super(CycleGAN, self).__init__(p)
nb = p.batchSize
size = p.cropSize
# load/define models
# The naming conversion is different from those used in the paper
# Code (paper): G_A (G), G_B (F), D_A (D_Y), D_B (D_X)
self.netG_A = networks.define_G(p.input_nc, p.output_nc, p.ngf,
p.which_model_netG, p.norm,
not p.no_dropout, p.init_type,
self.gpu_ids)
self.netG_B = networks.define_G(p.output_nc, p.input_nc, p.ngf,
p.which_model_netG, p.norm,
not p.no_dropout, p.init_type,
self.gpu_ids)
if self.isTrain:
use_sigmoid = p.no_lsgan
self.netD_A = networks.define_D(p.output_nc, p.ndf,
p.which_model_netD, p.n_layers_D,
p.norm, use_sigmoid, p.init_type,
self.gpu_ids)
self.netD_B = networks.define_D(p.input_nc, p.ndf,
p.which_model_netD, p.n_layers_D,
p.norm, use_sigmoid, p.init_type,
self.gpu_ids)
if not self.isTrain or p.continue_train:
which_epoch = p.which_epoch
self.load_model(self.netG_A, 'G_A', which_epoch)
self.load_model(self.netG_B, 'G_B', which_epoch)
if self.isTrain:
self.load_model(self.netD_A, 'D_A', which_epoch)
self.load_model(self.netD_B, 'D_B', which_epoch)
if self.isTrain:
self.old_lr = p.lr
self.fake_A_pool = ImagePool(p.pool_size)
self.fake_B_pool = ImagePool(p.pool_size)
# define loss functions
self.criterionGAN = networks.GANLoss(use_lsgan=not p.no_lsgan,
tensor=self.Tensor)
self.criterionCycle = torch.nn.L1Loss()
self.criterionIdt = torch.nn.L1Loss()
# initialize optimizers
self.optimizer_G = torch.optim.Adam(itertools.chain(
self.netG_A.parameters(), self.netG_B.parameters()),
lr=p.lr,
betas=(p.beta1, 0.999))
self.optimizer_D_A = torch.optim.Adam(self.netD_A.parameters(),
lr=p.lr,
betas=(p.beta1, 0.999))
self.optimizer_D_B = torch.optim.Adam(self.netD_B.parameters(),
lr=p.lr,
betas=(p.beta1, 0.999))
self.optimizers = []
self.schedulers = []
self.optimizers.append(self.optimizer_G)
self.optimizers.append(self.optimizer_D_A)
self.optimizers.append(self.optimizer_D_B)
for optimizer in self.optimizers:
self.schedulers.append(networks.get_scheduler(optimizer, p))
nz = int(opt.nz)
ngf = int(opt.ngf)
ndf = int(opt.ndf)
nc = 1
print('===> Loading datasets')
dataset = DatasetFromFolder(opt.dataroot, opt.imageSize)
assert dataset
dataloader = torch.utils.data.DataLoader(dataset,
batch_size=opt.batchSize,
shuffle=True,
num_workers=int(opt.workers))
print('===> Building model')
netG = define_G(nc, nz, ngf, ngpu, device, opt.netG)
netD = define_D(nc, ndf, ngpu, device, opt.netD)
criterion = nn.BCELoss()
fixed_noise = torch.randn(opt.batchSize, nz, 1, 1, device=device)
real_label = 1
fake_label = 0
# setup optimizer
optimizerD = optim.Adam(netD.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
optimizerG = optim.Adam(netG.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
print('---------- Networks initialized -------------')
print_network(netG)
print_network(netD)
print('-----------------------------------------------')
def initialize(self, opt):
super(MultimodalDesignerGAN_V2, self).initialize(opt)
###################################
# define networks
###################################
self.modules = {}
# shape branch
if opt.which_model_netG != 'unet':
self.shape_encoder = networks.define_image_encoder(opt, 'shape')
self.modules['shape_encoder'] = self.shape_encoder
else:
self.shape_encoder = None
# edge branch
if opt.use_edge:
self.edge_encoder = networks.define_image_encoder(opt, 'edge')
self.modules['edge_encoder'] = self.edge_encoder
else:
self.encoder_edge = None
# color branch
if opt.use_color:
self.color_encoder = networks.define_image_encoder(opt, 'color')
self.modules['color_encoder'] = self.color_encoder
else:
self.color_encoder = None
# fusion model
if opt.ftn_model == 'none':
# shape_feat, edge_feat and color_feat will be simply upmpled to same size (size of shape_feat) and concatenated
pass
elif opt.ftn_model == 'concat':
assert opt.use_edge or opt.use_color
if opt.use_edge:
self.edge_trans_net = networks.define_feature_fusion_network(
name='FeatureConcatNetwork',
feat_nc=opt.edge_nof,
guide_nc=opt.shape_nof,
nblocks=opt.ftn_nblocks,
norm=opt.norm,
gpu_ids=self.gpu_ids,
init_type=opt.init_type)
self.modules['edge_trans_net'] = self.edge_trans_net
if opt.use_color:
self.color_trans_net = networks.define_feature_fusion_network(
name='FeatureConcatNetwork',
feat_nc=opt.color_nof,
guide_nc=opt.shape_nof,
nblocks=opt.ftn_nblocks,
norm=opt.norm,
gpu_ids=self.gpu_ids,
init_type=opt.init_type)
self.modules['color_trans_net'] = self.color_trans_net
elif opt.ftn_model == 'reduce':
assert opt.use_edge or opt.use_color
if opt.use_edge:
self.edge_trans_net = networks.define_feature_fusion_network(
name='FeatureReduceNetwork',
feat_nc=opt.edge_nof,
guide_nc=opt.shape_nof,
nblocks=opt.ftn_nblocks,
ndowns=opt.ftn_ndowns,
norm=opt.norm,
gpu_ids=self.gpu_ids,
init_type=opt.init_type)
self.modules['edge_trans_net'] = self.edge_trans_net
if opt.use_color:
self.color_trans_net = networks.define_feature_fusion_network(
name='FeatureReduceNetwork',
feat_nc=opt.color_nof,
guide_nc=opt.shape_nof,
nblocks=opt.ftn_nblocks,
ndowns=opt.ftn_ndowns,
norm=opt.norm,
gpu_ids=self.gpu_ids,
init_type=opt.init_type)
self.modules['color_trans_net'] = self.color_trans_net
elif opt.ftn_model == 'trans':
assert opt.use_edge or opt.use_color
if opt.use_edge:
self.edge_trans_net = networks.define_feature_fusion_network(
name='FeatureTransformNetwork',
feat_nc=opt.edge_nof,
guide_nc=opt.shape_nof,
nblocks=opt.ftn_nblocks,
feat_size=opt.feat_size_lr,
norm=opt.norm,
gpu_ids=self.gpu_ids,
init_type=opt.init_type)
self.modules['edge_trans_net'] = self.edge_trans_net
if opt.use_color:
self.color_trans_net = networks.define_feature_fusion_network(
name='FeatureTransformNetwork',
feat_nc=opt.color_nof,
guide_nc=opt.shape_nof,
nblocks=opt.ftn_nblocks,
feat_size=opt.feat_size_lr,
norm=opt.norm,
gpu_ids=self.gpu_ids,
init_type=opt.init_type)
self.modules['color_trans_net'] = self.color_trans_net
# netG
self.netG = networks.define_generator(opt)
self.modules['netG'] = self.netG
# netD
if self.is_train:
self.netD = networks.define_D(opt)
self.modules['netD'] = self.netD
###################################
# load weights
###################################
if self.is_train:
if opt.continue_train:
for label, net in self.modules.iteritems():
self.load_network(net, label, opt.which_epoch)
else:
if opt.which_model_init != 'none':
# load pretrained entire model
for label, net in self.modules.iteritems():
self.load_network(net,
label,
'latest',
opt.which_model_init,
forced=False)
else:
# load pretrained encoder
if opt.which_model_netG != 'unet' and opt.pretrain_shape:
self.load_network(self.shape_encoder, 'shape_encoder',
'latest',
opt.which_model_init_shape_encoder)
if opt.use_edge and opt.pretrain_edge:
self.load_network(self.edge_encoder, 'edge_encoder',
'latest',
opt.which_model_init_edge_encoder)
if opt.use_color and opt.pretrain_color:
self.load_network(self.color_encoder, 'color_encoder',
'latest',
opt.which_model_init_color_encoder)
else:
for label, net in self.modules.iteritems():
if label != 'netD':
self.load_network(net, label, opt.which_epoch)
###################################
# prepare for training
###################################
if self.is_train:
self.fake_pool = ImagePool(opt.pool_size)
###################################
# define loss functions
###################################
self.loss_functions = []
if opt.which_gan in {'dcgan', 'lsgan'}:
self.crit_GAN = networks.GANLoss(
use_lsgan=opt.which_gan == 'lsgan', tensor=self.Tensor)
self.loss_functions.append(self.crit_GAN)
else:
# WGAN loss will be calculated in self.backward_D_wgangp and self.backward_G
self.crit_GAN = None
self.crit_L1 = nn.L1Loss()
self.loss_functions.append(self.crit_L1)
if self.opt.loss_weight_vgg > 0:
self.crit_vgg = networks.VGGLoss(self.gpu_ids)
self.loss_functions.append(self.crit_vgg)
if self.opt.G_output_seg:
self.crit_CE = nn.CrossEntropyLoss()
self.loss_functions.append(self.crit_CE)
self.crit_psnr = networks.SmoothLoss(networks.PSNR())
self.loss_functions.append(self.crit_psnr)
###################################
# create optimizers
###################################
self.schedulers = []
self.optimizers = []
# G optimizer
G_module_list = [
'shape_encoder', 'edge_encoder', 'color_encoder', 'netG'
]
G_param_groups = [{
'params': self.modules[m].parameters()
} for m in G_module_list if m in self.modules]
self.optim_G = torch.optim.Adam(G_param_groups,
lr=opt.lr,
betas=(opt.beta1, opt.beta2))
self.optimizers.append(self.optim_G)
# D optimizer
self.optim_D = torch.optim.Adam(self.netD.parameters(),
lr=opt.lr_D,
betas=(opt.beta1, opt.beta2))
self.optimizers.append(self.optim_D)
# feature transfer network optimizer
FTN_module_list = ['edge_trans_net', 'color_trans_net']
FTN_param_groups = [{
'params': self.modules[m].parameters()
} for m in FTN_module_list if m in self.modules]
if len(FTN_param_groups) > 0:
self.optim_FTN = torch.optim.Adam(FTN_param_groups,
lr=opt.lr_FTN,
betas=(0.9, 0.999))
self.optimizers.append(self.optim_FTN)
else:
self.optim_FTN = None
# schedulers
for optim in self.optimizers:
self.schedulers.append(networks.get_scheduler(optim, opt))
def initialize(self, opt):
super(MultimodalDesignerGAN, self).initialize(opt)
###################################
# load/define networks
###################################
# basic G
self.netG = networks.define_G(opt)
# encoders
self.encoders = {}
if opt.use_edge:
self.edge_encoder = networks.define_image_encoder(opt, 'edge')
self.encoders['edge_encoder'] = self.edge_encoder
if opt.use_color:
self.color_encoder = networks.define_image_encoder(opt, 'color')
self.encoders['color_encoder'] = self.color_encoder
if opt.use_attr:
self.attr_encoder, self.opt_AE = network_loader.load_attribute_encoder_net(
id=opt.which_model_AE, gpu_ids=opt.gpu_ids)
# basic D and auxiliary Ds
if self.is_train:
# basic D
self.netD = networks.define_D(opt)
# auxiliary Ds
self.auxiliaryDs = {}
if opt.use_edge_D:
assert opt.use_edge
self.netD_edge = networks.define_D_from_params(
input_nc=opt.edge_nof + 3,
ndf=opt.ndf,
which_model_netD=opt.which_model_netD,
n_layers_D=opt.n_layers_D,
norm=opt.norm,
which_gan='dcgan',
init_type=opt.init_type,
gpu_ids=opt.gpu_ids)
self.auxiliaryDs['D_edge'] = self.netD_edge
if opt.use_color_D:
assert opt.use_color
self.netD_color = networks.define_D_from_params(
input_nc=opt.color_nof + 3,
ndf=opt.ndf,
which_model_netD=opt.which_model_netD,
n_layers_D=opt.n_layers_D,
norm=opt.norm,
which_gan='dcgan',
init_type=opt.init_type,
gpu_ids=opt.gpu_ids)
self.auxiliaryDs['D_color'] = self.netD_color
if opt.use_attr_D:
assert opt.use_attr
attr_nof = opt.n_attr_feat if opt.attr_cond_type in {
'feat', 'feat_map'
} else opt.n_attr
self.netD_attr = networks.define_D_from_params(
input_nc=attr_nof + 3,
ndf=opt.ndf,
which_model_netD=opt.which_model_netD,
n_layers_D=opt.n_layers_D,
norm=opt.norm,
which_gan='dcgan',
init_type=opt.init_type,
gpu_ids=opt.gpu_ids)
self.auxiliaryDs['D_attr'] = self.netD_attr
# load weights
if not opt.continue_train:
if opt.which_model_init != 'none':
self.load_network(self.netG, 'G', 'latest',
opt.which_model_init)
self.load_network(self.netD, 'D', 'latest',
opt.which_model_init)
for l, net in self.encoders.iteritems():
self.load_network(net, l, 'latest',
opt.which_model_init)
for l, net in self.auxiliaryDs.iteritems():
self.load_network(net, l, 'latest',
opt.which_model_init)
else:
self.load_network(self.netG, 'G', opt.which_epoch)
self.load_network(self.netD, 'D', opt.which_epoch)
for l, net in self.encoders.iteritems():
self.load_network(net, l, opt.which_epoch)
for l, net in self.auxiliaryDs.iteritems():
self.load_network(net, l, opt.which_epoch)
else:
self.load_network(self.netG, 'G', opt.which_epoch)
for l, net in self.encoders.iteritems():
self.load_network(net, l, opt.which_epoch)
if self.is_train:
self.fake_pool = ImagePool(opt.pool_size)
###################################
# define loss functions and loss buffers
###################################
self.loss_functions = []
if opt.which_gan in {'dcgan', 'lsgan'}:
self.crit_GAN = networks.GANLoss(
use_lsgan=opt.which_gan == 'lsgan', tensor=self.Tensor)
else:
# WGAN loss will be calculated in self.backward_D_wgangp and self.backward_G
self.crit_GAN = None
self.loss_functions.append(self.crit_GAN)
self.crit_L1 = nn.L1Loss()
self.loss_functions.append(self.crit_L1)
if self.opt.loss_weight_vgg > 0:
self.crit_vgg = networks.VGGLoss(self.gpu_ids)
self.loss_functions.append(self.crit_vgg)
self.crit_psnr = networks.SmoothLoss(networks.PSNR())
self.loss_functions.append(self.crit_psnr)
###################################
# create optimizers
###################################
self.schedulers = []
self.optimizers = []
# optim_G will optimize parameters of netG and all image encoders (except attr_encoder)
G_param_groups = [{'params': self.netG.parameters()}]
for l, net in self.encoders.iteritems():
G_param_groups.append({'params': net.parameters()})
self.optim_G = torch.optim.Adam(G_param_groups,
lr=opt.lr,
betas=(opt.beta1, opt.beta2))
self.optimizers.append(self.optim_G)
# optim_D will optimize parameters of netD
self.optim_D = torch.optim.Adam(self.netD.parameters(),
lr=opt.lr_D,
betas=(opt.beta1, opt.beta2))
self.optimizers.append(self.optim_D)
# optim_D_aux will optimize parameters of auxiliaryDs
if len(self.auxiliaryDs) > 0:
aux_D_param_groups = [{
'params': net.parameters()
} for net in self.auxiliaryDs.values()]
self.optim_D_aux = torch.optim.Adam(aux_D_param_groups,
lr=opt.lr_D,
betas=(opt.beta1,
opt.beta2))
self.optimizers.append(self.optim_D_aux)
for optim in self.optimizers:
self.schedulers.append(networks.get_scheduler(optim, opt))
# color transformation from std to imagenet
# img_imagenet = img_std * a + b
self.trans_std_to_imagenet = {
'a':
Variable(self.Tensor([0.5 / 0.229, 0.5 / 0.224, 0.5 / 0.225]),
requires_grad=False).view(3, 1, 1),
'b':
Variable(self.Tensor([(0.5 - 0.485) / 0.229, (0.5 - 0.456) / 0.224,
(0.5 - 0.406) / 0.225]),
requires_grad=False).view(3, 1, 1)
}
def initialize(self, opt):
BaseModel.initialize(self, opt)
if opt.resize_or_crop != 'none' or not opt.isTrain: # when training at full res this causes OOM
torch.backends.cudnn.benchmark = True
self.isTrain = opt.isTrain
input_nc = opt.label_nc if opt.label_nc != 0 else opt.input_nc
##### define networks
# Generator network
netG_input_nc = input_nc
# Main Generator
self.netG = networks.define_G(11,
opt.output_nc,
opt.ngf,
opt.netG,
opt.n_downsample_global,
opt.n_blocks_global,
opt.n_local_enhancers,
opt.n_blocks_local,
opt.norm,
gpu_ids=self.gpu_ids)
self.netP = networks.define_P(44,
20,
opt.ngf,
opt.netG,
opt.n_downsample_global,
opt.n_blocks_global,
opt.n_local_enhancers,
opt.n_blocks_local,
opt.norm,
gpu_ids=self.gpu_ids)
self.netP.load_state_dict(
torch.load(
os.path.dirname(os.path.realpath(__file__)) +
"/checkpoints/generate/parse.pth"))
# Discriminator network
if self.isTrain:
use_sigmoid = opt.no_lsgan
netD_input_nc = input_nc + opt.output_nc
netB_input_nc = opt.output_nc * 2
self.netD = networks.define_D(netD_input_nc,
opt.ndf,
opt.n_layers_D,
opt.norm,
use_sigmoid,
opt.num_D,
not opt.no_ganFeat_loss,
gpu_ids=self.gpu_ids)
#self.netB = networks.define_B(netB_input_nc, opt.output_nc, 32, 3, 3, opt.norm, gpu_ids=self.gpu_ids)
if self.opt.verbose:
print('---------- Networks initialized -------------')
# load networks
if not self.isTrain or opt.continue_train or opt.load_pretrain:
pretrained_path = '' if not self.isTrain else opt.load_pretrain
self.load_network(self.netG, 'G', opt.which_epoch, pretrained_path)
if self.isTrain:
self.load_network(self.netD, 'D', opt.which_epoch,
pretrained_path)
# set loss functions and optimizers
if self.isTrain:
if opt.pool_size > 0 and (len(self.gpu_ids)) > 1:
raise NotImplementedError(
"Fake Pool Not Implemented for MultiGPU")
self.fake_pool = ImagePool(opt.pool_size)
self.old_lr = opt.lr
# define loss functions
self.loss_filter = self.init_loss_filter(not opt.no_ganFeat_loss,
not opt.no_vgg_loss)
self.criterionGAN = networks.GANLoss(use_lsgan=not opt.no_lsgan,
tensor=self.Tensor)
self.criterionFeat = torch.nn.L1Loss()
if not opt.no_vgg_loss:
self.criterionVGG = networks.VGGLoss(self.gpu_ids)
self.criterionStyle = networks.StyleLoss(self.gpu_ids)
# Names so we can breakout loss
self.loss_names = self.loss_filter('G_GAN', 'G_GAN_Feat', 'G_VGG',
'D_real', 'D_fake')
# initialize optimizers
# optimizer G
if opt.niter_fix_global > 0:
import sys
if sys.version_info >= (3, 0):
finetune_list = set()
else:
from sets import Set
finetune_list = Set()
params_dict = dict(self.netG.named_parameters())
params = []
for key, value in params_dict.items():
if key.startswith('model' + str(opt.n_local_enhancers)):
params += [value]
finetune_list.add(key.split('.')[0])
print(
'------------- Only training the local enhancer network (for %d epochs) ------------'
% opt.niter_fix_global)
print('The layers that are finetuned are ',
sorted(finetune_list))
else:
params = list(self.netG.parameters())+list(self.netimage.parameters())+list(self.netcolor.parameters())\
+list(self.netlabel.parameters())+list(self.netsketch.parameters())+list(self.classfier.parameters())
# params.extend(list(self.netimage.parameters()))
self.optimizer_G = torch.optim.Adam(params,
lr=opt.lr,
betas=(opt.beta1, 0.999))
# optimizer D
params = list(self.netD.parameters())
self.optimizer_D = torch.optim.Adam(params,
lr=opt.lr,
betas=(opt.beta1, 0.999))
def TrainGenerator(real_A: tp.Numpy.Placeholder(
(1, 3, args.crop_size, args.crop_size), dtype=flow.float32),
real_B: tp.Numpy.Placeholder(
(1, 3, args.crop_size, args.crop_size),
dtype=flow.float32)):
with flow.scope.placement("gpu", "0:0-0"):
# G_A(A)
fake_B = networks.define_G(real_A,
"netG_A",
ngf=args.ngf,
n_blocks=9,
trainable=True,
reuse=True)
# G_B(G_A(A))
rec_A = networks.define_G(fake_B,
"netG_B",
ngf=args.ngf,
n_blocks=9,
trainable=True,
reuse=True)
# G_B(B)
fake_A = networks.define_G(real_B,
"netG_B",
ngf=args.ngf,
n_blocks=9,
trainable=True,
reuse=True)
# G_A(G_B(B))
rec_B = networks.define_G(fake_A,
"netG_A",
ngf=args.ngf,
n_blocks=9,
trainable=True,
reuse=True)
# Identity loss
# G_A should be identity if real_B is fed: ||G_A(B) - B||
idt_A = networks.define_G(real_B,
"netG_A",
ngf=args.ngf,
n_blocks=9,
trainable=True,
reuse=True)
loss_idt_A = networks.L1Loss(
idt_A - real_B) * args.lambda_B * args.lambda_identity
# G_B should be identity if real_A is fed: ||G_B(A) - A||
idt_B = networks.define_G(real_A,
"netG_B",
ngf=args.ngf,
n_blocks=9,
trainable=True,
reuse=True)
loss_idt_B = networks.L1Loss(
idt_B - real_A) * args.lambda_A * args.lambda_identity
# GAN loss D_A(G_A(A))
netD_A_out = networks.define_D(fake_B,
"netD_A",
ndf=args.ndf,
n_layers_D=3,
trainable=False,
reuse=True)
loss_G_A = networks.GANLoss(netD_A_out, True)
# GAN loss D_B(G_B(B))
netD_B_out = networks.define_D(fake_A,
"netD_B",
ndf=args.ndf,
n_layers_D=3,
trainable=False,
reuse=True)
loss_G_B = networks.GANLoss(netD_B_out, True)
# Forward cycle loss || G_B(G_A(A)) - A||
loss_cycle_A = networks.L1Loss(rec_A - real_A) * args.lambda_A
# Backward cycle loss || G_A(G_B(B)) - B||
loss_cycle_B = networks.L1Loss(rec_B - real_B) * args.lambda_B
# combined loss and calculate gradients
loss_G = loss_G_A + loss_G_B + loss_cycle_A + loss_cycle_B + loss_idt_A + loss_idt_B
flow.optimizer.Adam(flow.optimizer.PiecewiseConstantScheduler(
[], [args.learning_rate]),
beta1=0.5).minimize(loss_G)
return fake_B, rec_A, fake_A, rec_B, loss_G
import torch.nn.functional as F
import torch.optim as optim
import torch
from tqdm import tqdm
import numpy as np
from tensorboardX import SummaryWriter
batch_size = 1
ds_size = 200
writer = SummaryWriter()
device = torch.device("cuda:6")
net_D = networks.define_D(6, 64, 'n_layers', n_layers_D=3, use_sigmoid=False, out_channels=128)
net_D.to(device)
optimizer_D = optim.SGD(net_D.parameters(), lr=0.0001, momentum=0.5)
chkpt = torch.load('../vanilla/checkpoints_/63.pth')
net_D.load_state_dict(chkpt['state_dict'])
def softmax2d(tensor):
'''
Pytorch doesn't natively implement 2d softmax???
I am saddened!
'''
return F.softmax(tensor.view(-1)).view_as(tensor)
def normalize_G(net_G):
'''
Normalizes the off diagonal and on diagonal entries of net_G
def main(name_exp, segloss=False, cuda=True, finetune=False):
# Training settings
parser = argparse.ArgumentParser(description='pix2pix-PyTorch-implementation')
parser.add_argument('--batchSize', type=int, default=8, help='training batch size')
parser.add_argument('--testBatchSize', type=int, default=8, help='testing batch size')
parser.add_argument('--nEpochs', type=int, default=100, help='number of epochs to train for')
parser.add_argument('--input_nc', type=int, default=3, help='input image channels')
parser.add_argument('--output_nc', type=int, default=3, help='output image channels')
parser.add_argument('--ngf', type=int, default=64, help='generator filt+ers in first conv layer')
parser.add_argument('--ndf', type=int, default=64, help='discriminator filters in first conv layer')
parser.add_argument('--lr', type=float, default=0.0002, help='Learning Rate. Default=0.0002')
parser.add_argument('--beta1', type=float, default=0.5, help='beta1 for adam. default=0.5')
parser.add_argument('--threads', type=int, default=8, help='number of threads for data loader to use')
parser.add_argument('--seed', type=int, default=123, help='random seed to use. Default=123')
parser.add_argument('--lamb', type=int, default=10, help='weight on L1 term in objective')
opt = parser.parse_args()
cudnn.benchmark = True
def val():
net_current = "path_exp/checkpoint/DFS/{}/netG_model_current.pth".format(name_exp)
netVal = torch.load(net_current)
netVal.eval()
SEG_NET.eval()
features.eval()
with torch.no_grad():
total_mse = 0
total_mse2 = 0
avg_psnr_depth = 0
avg_psnr_dehaze = 0
avg_ssim_depth = 0
avg_ssim_dehaze = 0
for batch in validation_data_loader:
input, target, depth = Variable(batch[0]), Variable(batch[1]), Variable(batch[2])
if cuda == True:
input = input.cuda()
target = target.cuda()
depth = depth.cuda()
dehaze = netVal(input)
prediction = SEG_NET(dehaze)
avg_ssim_dehaze += pytorch_ssim.ssim(dehaze, target).item()
mse = criterionMSE(prediction, depth)
total_mse += mse.item()
avg_psnr_depth += 10 * log10(1 / mse.item())
mse2 = criterionMSE(dehaze, target)
total_mse2 += mse2.item()
avg_psnr_dehaze += 10 * log10(1 / mse2.item())
avg_ssim_depth += pytorch_ssim.ssim(prediction, depth).item()
visual_ret_val = OrderedDict()
visual_ret_val['Haze'] = input
visual_ret_val['Seg estimate'] = prediction
visual_ret_val['Dehaze '] = dehaze
visual_ret_val['GT dehaze'] = target
visual_ret_val['GT Seg '] = depth
visualizer.display_current_results(visual_ret_val, epoch, True)
print("===> Validation")
#f.write("===> Testing: \r\n")
print("===> PSNR seg: {:.4f} ".format(avg_psnr_depth / len(validation_data_loader)))
#f.write("===> PSNR depth: {:.4f} \r\n".format(avg_psnr_depth / len(validation_data_loader)))
print("===> Mse seg: {:.4f} ".format(total_mse / len(validation_data_loader)))
#f.write("===> Mse depth: {:.4f} \r\n".format(total_mse / len(validation_data_loader)))
print("===> SSIM seg: {:.4f} ".format(avg_ssim_depth / len(validation_data_loader)))
#f.write("===> SSIM depth: {:.4f} \r\n".format(avg_ssim_depth / len(validation_data_loader)))
return total_mse / len(validation_data_loader)
def testing():
path = "path_exp/checkpoint/DFS/{}/netG_model_best.pth".format(name_exp)
net = torch.load(path)
net.eval()
SEG_NET.eval()
features.eval()
with torch.no_grad():
total_mse = 0
total_mse2 = 0
avg_psnr_depth = 0
avg_psnr_dehaze = 0
avg_ssim_depth = 0
avg_ssim_dehaze = 0
for batch in testing_data_loader:
input, target, depth = Variable(batch[0]), Variable(batch[1]), Variable(batch[2])
if cuda == True:
input = input.cuda()
target = target.cuda()
depth = depth.cuda()
dehaze = net(input)
prediction = SEG_NET(dehaze)
avg_ssim_dehaze += pytorch_ssim.ssim(dehaze, target).item()
mse = criterionMSE(prediction, depth)
total_mse += mse.item()
avg_psnr_depth += 10 * log10(1 / mse.item())
mse2 = criterionMSE(dehaze, target)
total_mse2 += mse2.item()
avg_psnr_dehaze += 10 * log10(1 / mse2.item())
avg_ssim_depth += pytorch_ssim.ssim(prediction, depth).item()
print("===> Testing")
print("===> PSNR seg: {:.4f} ".format(avg_psnr_depth / len(testing_data_loader)))
print("===> Mse seg: {:.4f} ".format(total_mse / len(testing_data_loader)))
print("===> SSIM seg: {:.4f} ".format(avg_ssim_depth / len(testing_data_loader)))
print("===> PSNR dehaze: {:.4f} ".format(avg_psnr_dehaze / len(testing_data_loader)))
print("===> SSIM dehaze: {:.4f} ".format(avg_ssim_dehaze / len(testing_data_loader)))
def checkpoint():
if not os.path.exists("checkpoint"):
os.mkdir("checkpoint")
if not os.path.exists(os.path.join("path_exp/checkpoint/DFS", name_exp)):
os.mkdir(os.path.join("path_exp/checkpoint/DFS", name_exp))
net_g_model_out_path = "path_exp/checkpoint/DFS/{}/netG_model_best.pth".format(name_exp)
net_d_model_out_path = "path_exp/checkpoint/DFS/{}/netD_model_best.pth".format(name_exp)
torch.save(netG, net_g_model_out_path)
torch.save(netD, net_d_model_out_path)
def checkpoint_current():
if not os.path.exists(os.path.join("path_exp/checkpoint/DFS", name_exp)):
os.mkdir(os.path.join("path_exp/checkpoint/DFS", name_exp))
net_g_model_out_path = "path_exp/checkpoint/DFS/{}/netG_model_current.pth".format(name_exp)
torch.save(netG, net_g_model_out_path)
def checkpoint_seg():
if not os.path.exists(os.path.join("path_exp/checkpoint/DFS", name_exp)):
os.mkdir(os.path.join("path_exp/checkpoint/DFS", name_exp))
net_g_model_out_path = "path_exp/checkpoint/DFS/{}/seg_net.pth".format(name_exp)
torch.save(SEG_NET, net_g_model_out_path)
torch.manual_seed(opt.seed)
if cuda==True:
torch.cuda.manual_seed(opt.seed)
print(" ")
print(name_exp)
print(" ")
print('===> Loading datasets')
train_set = get_training_set('path_exp/cityscape/HAZE')
val_set = get_val_set('path_exp/cityscape/HAZE')
test_set = get_test_set('path_exp/cityscape/HAZE')
training_data_loader = DataLoader(dataset=train_set, num_workers=opt.threads, batch_size=opt.batchSize, shuffle=True)
validation_data_loader = DataLoader(dataset=val_set, num_workers=opt.threads, batch_size=opt.batchSize, shuffle=True)
testing_data_loader= DataLoader(dataset=test_set, num_workers=opt.threads, batch_size=opt.testBatchSize, shuffle=False)
print('===> Building model')
netG = define_G(opt.input_nc, opt.output_nc, opt.ngf, 'batch', False, [0])
netD = define_D(opt.input_nc + opt.output_nc, opt.ndf, 'batch', False, [0])
criterionGAN = GANLoss()
criterionL1 = nn.L1Loss()
criterionMSE = nn.MSELoss()
# setup optimizer
optimizerG = optim.Adam(netG.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
optimizerD = optim.Adam(netD.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
print('---------- Networks initialized -------------')
print_network(netG)
print_network(netD)
print('-----------------------------------------------')
real_a = torch.FloatTensor(opt.batchSize, opt.input_nc, 256, 256)
real_b = torch.FloatTensor(opt.batchSize, opt.output_nc, 256, 256)
real_c = torch.FloatTensor(opt.batchSize, opt.output_nc, 256, 256)
if cuda==True:
netD = netD.cuda()
netG = netG.cuda()
criterionGAN = criterionGAN.cuda()
criterionL1 = criterionL1.cuda()
criterionMSE = criterionMSE.cuda()
real_a = real_a.cuda()
real_b = real_b.cuda()
real_c=real_c.cuda()
real_a = Variable(real_a)
real_b = Variable(real_b)
real_c = Variable(real_c)
SEG_NET = torch.load("path_exp/SEG_NET.pth")
optimizerSeg = optim.Adam(SEG_NET.parameters(), lr=opt.lr/10, betas=(opt.beta1, 0.999))
features = Vgg16()
if cuda==True:
SEG_NET.cuda()
features.cuda()
bon =100000000
for epoch in range(opt.nEpochs):
features.eval()
if finetune== True and epoch>50:
SEG_NET.train()
else:
SEG_NET.eval()
loss_epoch_gen=0
loss_epoch_dis=0
total_segloss=0
loss_seg=0
i=0
for iteration, batch in enumerate(training_data_loader, 1):
netG.train()
i=i+1
# forward
real_a_cpu, real_b_cpu, real_c_cpu = batch[0], batch[1], batch[2]
with torch.no_grad():
real_a = real_a.resize_(real_a_cpu.size()).copy_(real_a_cpu)
with torch.no_grad():
real_b = real_b.resize_(real_b_cpu.size()).copy_(real_b_cpu)
with torch.no_grad():
real_c = real_c.resize_(real_c_cpu.size()).copy_(real_c_cpu)
fake_b = netG(real_a)
############################
# (1) Update D network: maximize log(D(x,y)) + log(1 - D(x,G(x)))
###########################
optimizerD.zero_grad()
# train with fake
fake_ab = torch.cat((real_a, fake_b), 1)
pred_fake = netD.forward(fake_ab.detach())
loss_d_fake = criterionGAN(pred_fake, False)
# train with real
real_ab = torch.cat((real_a, real_b), 1)
pred_real = netD.forward(real_ab)
loss_d_real = criterionGAN(pred_real, True)
# Combined loss
loss_d = (loss_d_fake + loss_d_real) * 0.5
loss_d.backward()
optimizerD.step()
############################
# (2) Update G network: maximize log(D(x,G(x))) + L1(y,G(x))
##########################
optimizerG.zero_grad()
# First, G(A) should fake the discriminator
fake_ab = torch.cat((real_a, fake_b), 1)
pred_fake = netD.forward(fake_ab)
loss_g_gan = criterionGAN(pred_fake, True)
# Second, G(A) = B
loss_g_l1 = criterionL1(fake_b, real_b) * opt.lamb
features_y = features(fake_b)
features_x = features(real_b)
loss_content = criterionMSE(features_y[1], features_x[1])*10
if segloss == True:
fake_seg = SEG_NET(fake_b)
loss_seg = criterionMSE(fake_seg, real_c) * 10
total_segloss += loss_seg.item()
features_y = features(fake_seg)
features_x = features(real_c)
ssim_seg = criterionMSE(features_y[1], features_x[1]) * 10
loss_g = loss_g_gan + loss_g_l1 + loss_content + loss_seg
else:
loss_g = loss_g_gan + loss_g_l1+loss_content
loss_epoch_gen+=loss_g.item()
loss_epoch_dis+=loss_d.item()
if finetune== True and epoch>50:
loss_g.backward(retain_graph=True)
optimizerG.step()
loss_seg=loss_seg
loss_seg.backward()
optimizerSeg.zero_grad()
optimizerSeg.step()
else:
loss_g.backward()
optimizerG.step()
errors_ret = OrderedDict()
errors_ret['Total_G'] = float(loss_g)
errors_ret['Content'] = float(loss_content)
errors_ret['GAN'] = float(loss_g_gan)
errors_ret['L1'] = float(loss_g_l1)
errors_ret['D'] = float(loss_d)
if i % 10 == 0: # print training losses and save logging information to the disk
if i > 0:
visualizer.plot_current_losses(epoch, i/(len(training_data_loader)*opt.batchSize), errors_ret)
print("===> Epoch[{}]: Loss_D: {:.4f} Loss_G: {:.4f} Loss Seg: {:.4f} ".format(epoch, loss_epoch_dis,loss_epoch_gen, total_segloss))
checkpoint_current()
MSE=val()
if MSE < bon:
bon = MSE
checkpoint()
checkpoint_seg()
print("BEST EPOCH SAVED")
testing()
if opt.two_step:
optimizer = None
netG = define_G(3, 3, 64, 'batch', False)
if opt.end:
optimizerG = optim.Adam(list(model.parameters()) +
list(netG.parameters()),
opt.learning_rate,
betas=(0.9, 0.999))
else:
optimizerG = optim.Adam(netG.parameters(),
opt.learning_rate,
betas=(0.9, 0.999))
print(netG)
if opt.use_gan:
netD = define_D(3 + 3, 64, 'batch', use_sigmoid=False)
optimizerD = optim.Adam(netD.parameters(),
opt.learning_rate,
betas=(0.9, 0.999))
print(netD)
else:
netD = None
optimizerD = None
else:
if opt.use_gan:
netD = define_D(3 + 3, 64, 'batch', use_sigmoid=False)
optimizerD = optim.Adam(netD.parameters(),
opt.learning_rate,
betas=(0.9, 0.999))
print(netD)
else:
# testing_data_loader = DataLoader(dataset=DatasetFromFolder(dataroot_test, direction), num_workers=threads, batch_size=test_batch_size)
visualization_data_loader = DataLoader(dataset=visual_set,
num_workers=threads,
batch_size=test_batch_size,
shuffle=False)
print('===> Building models')
'''loading the generator and discriminator'''
net_g = define_G(input_nc,
output_nc,
ngf,
netG=netG_type,
norm='batch',
use_dropout=False,
gpu_id=device)
net_d = define_D(input_nc + output_nc, ndf, 'n_layers', gpu_id=device)
'''set loss fn'''
criterionGAN = GANLoss().to(device)
criterionL1 = nn.L1Loss().to(device)
criterionMSE = nn.MSELoss().to(device)
'''setup optimizer'''
optimizer_g = optim.Adam(net_g.parameters(), lr=lr, betas=(beta1, 0.999))
optimizer_d = optim.Adam(net_d.parameters(), lr=lr, betas=(beta1, 0.999))
'''set the learning rate adjust policy'''
net_g_scheduler = get_scheduler(optimizer_g)
net_d_scheduler = get_scheduler(optimizer_d)
'''training process'''
for epoch in range(epoch_count, n_epoch + n_epoch_decay + 1):
epoch_start_time = time.time() # start timer in each epoch
train_set = get_training_set(root_path + opt.dataset)
test_set = get_test_set(root_path + opt.dataset)
training_data_loader = DataLoader(dataset=train_set,
num_workers=opt.threads,
batch_size=opt.batchSize,
shuffle=True)
testing_data_loader = DataLoader(dataset=test_set,
num_workers=opt.threads,
batch_size=opt.testBatchSize,
shuffle=False)
print('===> Building model')
netG = define_G(opt.input_nc, opt.output_nc, opt.ngf, 'batch', False, [0])
netD = define_D(opt.input_nc + opt.output_nc, opt.ndf, 'batch', False, [0])
print('loading done')
criterionGAN = GANLoss()
criterionL1 = nn.L1Loss()
criterionMSE = nn.MSELoss()
# setup optimizer
optimizerG = optim.Adam(netG.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
optimizerD = optim.Adam(netD.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
print('---------- Networks initialized -------------')
print_network(netG)
print_network(netD)
print('-----------------------------------------------')
test_set = PanColorDataset(mode='test', dataset=opt.dataset)
elif opt.model == 'PanSRGAN':
train_set = PanSRDataset(mode='train', dataset=opt.dataset)
test_set = PanSRDataset(mode='test', dataset=opt.dataset)
training_data_loader = DataLoader(
dataset=train_set, num_workers=opt.threads, batch_size=opt.batchSize, shuffle=True)
testing_data_loader = DataLoader(
dataset=test_set,num_workers=opt.threads, batch_size=opt.batchSize, shuffle=False)
## Define Network
netG = define_G(opt.input_nc, opt.output_nc,
opt.ngf, 'batch','leakyrelu', opt.useDropout, opt.upConvType, opt.gtype, opt.blockType, opt.nblocks, gpus, n_downsampling=opt.ndowns)
netD = define_D(opt.input_nc + opt.output_nc,
opt.ndf, 'batch', not opt.lsgan, opt.nlayers, gpus)
## Define Losses
criterionGAN = GANLoss(use_lsgan=opt.lsgan)
criterionL1 = nn.L1Loss()
criterionMSE = nn.MSELoss()
## Define Optimizers
optimizerG = optim.Adam(netG.parameters(), lr=opt.lr, betas=(
opt.beta1, 0.999), weight_decay=opt.regTerm)
optimizerD = optim.Adam(netD.parameters(), lr=opt.lr, betas=(
opt.beta1, 0.999), weight_decay=opt.regTerm)
## Continue from a checkpoint
if opt.cont:
from data.eval_dataset import EvalDataset
import matplotlib.pyplot as plt
from scipy.misc import imsave
from torch.utils.data import DataLoader
import torch.nn.functional as F
import torch
import numpy as np
# Panorama parameters
batch_size = 1
NUM_SLICES = 3
SAMPLES = 5 # Number of horizon offsets to sample before finetuning
# Set up deep learning stuff
device = torch.device("cuda")
model = networks.define_D(6, 64, 'n_layers', n_layers_D=3, use_sigmoid=False)
chkpt = torch.load('checkpoints/patch_horizon/49.pth')
model.load_state_dict(chkpt['state_dict'])
model.to(device)
patch_loss = networks.GANLoss()
# Create dataset
dataset = EvalDataset()
#dataset.initialize('../../../data/semanticLandscapes512/train_img', allrandom=True, return_idx=True)
#dataset.initialize('../../../data/MITCVCL/coast', allrandom=True)
dataset.initialize('../../../data/instagram_landscapes/anne_karin_69',
allrandom=True)
def convertImage(im):
'''
train_set = get_training_set(root_path)
test_set = get_test_set(root_path)
training_data_loader = DataLoader(dataset=train_set, num_workers=opt.threads,
batch_size=opt.batchSize, shuffle=True)
test_data_loader = DataLoader(dataset=test_set, num_workers=opt.threads,
batch_size=opt.testBatchSize, shuffle=False)
cprint('==> Preparing Data Set: Complete\n', 'green')
################################################################################
cprint('==> Building Models', 'yellow')
netG = define_G(opt.input_nc, opt.output_nc, opt.ngf, norm='batch', use_dropout=False, gpu_ids=gpu_ids)
netD = define_D(opt.input_nc + opt.output_nc, opt.ndf, norm='batch', use_sigmoid=False, gpu_ids=gpu_ids)
print('---------- Networks initialized -------------')
print_network(netG)
print_network(netD)
print('-----------------------------------------------\n')
cprint('==> Building Models: Complete\n', 'green')
################################################################################
criterionGAN = GANLoss()
criterionL1 = nn.L1Loss()
criterionMSE = nn.MSELoss()
# setup optimizer
optimizerG = optim.Adam(netG.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
optimizerD = optim.Adam(netD.parameters(), lr=opt.lr, betas=(opt.beta1, 0.999))
