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from options.train_options import TrainOptions
from models.networks import ResUnetGenerator, VGGLoss, save_checkpoint, load_checkpoint_parallel
from models.afwm import TVLoss, AFWM
import torch.nn as nn
import torch.nn.functional as F
import os
import numpy as np
import torch
from torch.utils.data import DataLoader
from torch.utils.data.distributed import DistributedSampler
from tensorboardX import SummaryWriter
import cv2
import datetime
opt = TrainOptions().parse()
path = 'runs/'+opt.name
os.makedirs(path,exist_ok=True)
def CreateDataset(opt):
from data.aligned_dataset import AlignedDataset
dataset = AlignedDataset()
print("dataset [%s] was created" % (dataset.name()))
dataset.initialize(opt)
return dataset
os.makedirs('sample',exist_ok=True)
opt = TrainOptions().parse()
iter_path = os.path.join(opt.checkpoints_dir, opt.name, 'iter.txt')
torch.cuda.set_device(opt.local_rank)
torch.distributed.init_process_group(
'nccl',
init_method='env://'
)
device = torch.device(f'cuda:{opt.local_rank}')
start_epoch, epoch_iter = 1, 0
train_data = CreateDataset(opt)
train_sampler = DistributedSampler(train_data)
train_loader = DataLoader(train_data, batch_size=opt.batchSize, shuffle=False,
num_workers=4, pin_memory=True, sampler=train_sampler)
dataset_size = len(train_loader)
warp_model = AFWM(opt, 45)
print(warp_model)
warp_model.train()
warp_model.cuda()
load_checkpoint_parallel(warp_model, opt.PBAFN_warp_checkpoint)
gen_model = ResUnetGenerator(8, 4, 5, ngf=64, norm_layer=nn.BatchNorm2d)
print(gen_model)
gen_model.train()
gen_model.cuda()
warp_model = torch.nn.SyncBatchNorm.convert_sync_batchnorm(warp_model).to(device)
gen_model = torch.nn.SyncBatchNorm.convert_sync_batchnorm(gen_model).to(device)
if opt.isTrain and len(opt.gpu_ids):
model = torch.nn.parallel.DistributedDataParallel(warp_model, device_ids=[opt.local_rank])
model_gen = torch.nn.parallel.DistributedDataParallel(gen_model, device_ids=[opt.local_rank])
criterionL1 = nn.L1Loss()
criterionVGG = VGGLoss()
# optimizer
params_warp = [p for p in model.parameters()]
params_gen = [p for p in model_gen.parameters()]
optimizer_warp = torch.optim.Adam(params_warp, lr=0.2*opt.lr, betas=(opt.beta1, 0.999))
optimizer_gen = torch.optim.Adam(params_gen, lr=opt.lr, betas=(opt.beta1, 0.999))
total_steps = (start_epoch-1) * dataset_size + epoch_iter
step = 0
step_per_batch = dataset_size
if opt.local_rank == 0:
writer = SummaryWriter(path)
for epoch in range(start_epoch, opt.niter + opt.niter_decay + 1):
epoch_start_time = time.time()
if epoch != start_epoch:
epoch_iter = epoch_iter % dataset_size
train_sampler.set_epoch(epoch)
for i, data in enumerate(train_loader):
iter_start_time = time.time()
total_steps += 1
epoch_iter += 1
save_fake = True
t_mask = torch.FloatTensor((data['label'].cpu().numpy()==7).astype(np.float))
data['label'] = data['label']*(1-t_mask)+t_mask*4
edge = data['edge']
pre_clothes_edge = torch.FloatTensor((edge.detach().numpy() > 0.5).astype(np.int))
clothes = data['color']
clothes = clothes * pre_clothes_edge
person_clothes_edge = torch.FloatTensor((data['label'].cpu().numpy()==4).astype(np.int))
real_image = data['image']
person_clothes = real_image*person_clothes_edge
pose = data['pose']
size = data['label'].size()
oneHot_size1 = (size[0], 25, size[2], size[3])
densepose = torch.cuda.FloatTensor(torch.Size(oneHot_size1)).zero_()
densepose = densepose.scatter_(1,data['densepose'].data.long().cuda(),1.0)
densepose_fore = data['densepose']/24.0
face_mask = torch.FloatTensor((data['label'].cpu().numpy()==1).astype(np.int))+torch.FloatTensor((data['label'].cpu().numpy()==12).astype(np.int))
other_clothes_mask = torch.FloatTensor((data['label'].cpu().numpy()==5).astype(np.int)) + torch.FloatTensor((data['label'].cpu().numpy()==6).astype(np.int))\
+ torch.FloatTensor((data['label'].cpu().numpy()==8).astype(np.int)) + torch.FloatTensor((data['label'].cpu().numpy()==9).astype(np.int))\
+ torch.FloatTensor((data['label'].cpu().numpy()==10).astype(np.int))
face_img = face_mask * real_image
other_clothes_img = other_clothes_mask * real_image
preserve_region = face_img + other_clothes_img
preserve_mask = torch.cat([face_mask, other_clothes_mask],1)
concat = torch.cat([preserve_mask.cuda(), densepose, pose.cuda()],1)
arm_mask = torch.FloatTensor((data['label'].cpu().numpy()==11).astype(np.float)) + torch.FloatTensor((data['label'].cpu().numpy()==13).astype(np.float))
hand_mask = torch.FloatTensor((data['densepose'].cpu().numpy()==3).astype(np.int)) + torch.FloatTensor((data['densepose'].cpu().numpy()==4).astype(np.int))
hand_mask = arm_mask*hand_mask
hand_img = hand_mask*real_image
dense_preserve_mask = torch.FloatTensor((data['densepose'].cpu().numpy()==15).astype(np.int))+torch.FloatTensor((data['densepose'].cpu().numpy()==16).astype(np.int))\
+torch.FloatTensor((data['densepose'].cpu().numpy()==17).astype(np.int))+torch.FloatTensor((data['densepose'].cpu().numpy()==18).astype(np.int))\
+torch.FloatTensor((data['densepose'].cpu().numpy()==19).astype(np.int))+torch.FloatTensor((data['densepose'].cpu().numpy()==20).astype(np.int))\
+torch.FloatTensor((data['densepose'].cpu().numpy()==21).astype(np.int))+torch.FloatTensor((data['densepose'].cpu().numpy()==22))
dense_preserve_mask = dense_preserve_mask.cuda()*(1-person_clothes_edge.cuda())
preserve_region = face_img + other_clothes_img +hand_img
flow_out = model(concat.cuda(), clothes.cuda(), pre_clothes_edge.cuda())
warped_cloth, last_flow, _1, _2, delta_list, x_all, x_edge_all, delta_x_all, delta_y_all = flow_out
epsilon = 0.001
loss_smooth = sum([TVLoss(x) for x in delta_list])
warp_loss = 0
for num in range(5):
cur_person_clothes = F.interpolate(person_clothes, scale_factor=0.5**(4-num), mode='bilinear')
cur_person_clothes_edge = F.interpolate(person_clothes_edge, scale_factor=0.5**(4-num), mode='bilinear')
loss_l1 = criterionL1(x_all[num], cur_person_clothes.cuda())
loss_vgg = criterionVGG(x_all[num], cur_person_clothes.cuda())
loss_edge = criterionL1(x_edge_all[num], cur_person_clothes_edge.cuda())
b,c,h,w = delta_x_all[num].shape
loss_flow_x = (delta_x_all[num].pow(2) + epsilon*epsilon).pow(0.45)
loss_flow_x = torch.sum(loss_flow_x) / (b*c*h*w)
loss_flow_y = (delta_y_all[num].pow(2) + epsilon*epsilon).pow(0.45)
loss_flow_y = torch.sum(loss_flow_y) / (b*c*h*w)
loss_second_smooth = loss_flow_x + loss_flow_y
warp_loss = warp_loss + (num+1) * loss_l1 + (num+1) * 0.2 * loss_vgg + (num+1) * 2 * loss_edge + (num+1) * 6 * loss_second_smooth
warp_loss = 0.01 * loss_smooth + warp_loss
if opt.local_rank == 0:
writer.add_scalar('warp_loss', warp_loss, step)
warped_prod_edge = x_edge_all[4]
gen_inputs = torch.cat([preserve_region.cuda(), warped_cloth, warped_prod_edge, dense_preserve_mask], 1)
gen_outputs = model_gen(gen_inputs)
p_rendered, m_composite = torch.split(gen_outputs, [3, 1], 1)
p_rendered = torch.tanh(p_rendered)
m_composite = torch.sigmoid(m_composite)
m_composite1 = m_composite * warped_prod_edge
m_composite = person_clothes_edge.cuda()*m_composite1
p_tryon = warped_cloth * m_composite + p_rendered * (1 - m_composite)
loss_mask_l1 = torch.mean(torch.abs(1 - m_composite))
loss_l1 = criterionL1(p_tryon, real_image.cuda())
loss_vgg = criterionVGG(p_tryon,real_image.cuda())
bg_loss_l1 = criterionL1(p_rendered, real_image.cuda())
bg_loss_vgg = criterionVGG(p_rendered, real_image.cuda())
gen_loss = (loss_l1 * 5 + loss_vgg + bg_loss_l1 * 5 + bg_loss_vgg + loss_mask_l1)
if opt.local_rank == 0:
writer.add_scalar('gen_loss', gen_loss, step)
loss_all = 0.5 * warp_loss + 1.0 * gen_loss
if opt.local_rank == 0:
writer.add_scalar('loss_all', loss_all, step)
optimizer_warp.zero_grad()
optimizer_gen.zero_grad()
loss_all.backward()
optimizer_warp.step()
optimizer_gen.step()
############## Display results and errors ##########
path = 'sample/'+opt.name
os.makedirs(path,exist_ok=True)
if step % 1000 == 0:
if opt.local_rank == 0:
a = real_image.float().cuda()
b = person_clothes.cuda()
c = clothes.cuda()
d = torch.cat([densepose_fore.cuda(),densepose_fore.cuda(),densepose_fore.cuda()],1)
e = warped_cloth
f = torch.cat([warped_prod_edge,warped_prod_edge,warped_prod_edge],1)
g = preserve_region.cuda()
h = torch.cat([dense_preserve_mask,dense_preserve_mask,dense_preserve_mask],1)
i = p_rendered
j = torch.cat([m_composite1,m_composite1,m_composite1],1)
k = p_tryon
combine = torch.cat([a[0],b[0],c[0],d[0],e[0],f[0],g[0],h[0],i[0],j[0],k[0]], 2).squeeze()
cv_img = (combine.permute(1,2,0).detach().cpu().numpy()+1)/2
writer.add_image('combine', (combine.data + 1) / 2.0, step)
rgb = (cv_img*255).astype(np.uint8)
bgr = cv2.cvtColor(rgb,cv2.COLOR_RGB2BGR)
cv2.imwrite('sample/'+opt.name+'/'+str(step)+'.jpg',bgr)
step += 1
iter_end_time = time.time()
iter_delta_time = iter_end_time - iter_start_time
step_delta = (step_per_batch-step%step_per_batch) + step_per_batch*(opt.niter + opt.niter_decay-epoch)
eta = iter_delta_time*step_delta
eta = str(datetime.timedelta(seconds=int(eta)))
time_stamp = datetime.datetime.now()
now = time_stamp.strftime('%Y.%m.%d-%H:%M:%S')
if step % 100 == 0:
if opt.local_rank == 0:
print('{}:{}:[step-{}]--[loss-{:.6f}]--[loss-{:.6f}]--[ETA-{}]'.format(now, epoch_iter, step, warp_loss, gen_loss, eta))
if epoch_iter >= dataset_size:
break
iter_end_time = time.time()
if opt.local_rank == 0:
print('End of epoch %d / %d \t Time Taken: %d sec' %
(epoch, opt.niter + opt.niter_decay, time.time() - epoch_start_time))
### save model for this epoch
if epoch % opt.save_epoch_freq == 0:
if opt.local_rank == 0:
print('saving the model at the end of epoch %d, iters %d' % (epoch, total_steps))
save_checkpoint(model.module, os.path.join(opt.checkpoints_dir, opt.name, 'PBAFN_warp_epoch_%03d.pth' % (epoch+1)))
save_checkpoint(model_gen.module, os.path.join(opt.checkpoints_dir, opt.name, 'PBAFN_gen_epoch_%03d.pth' % (epoch+1)))
if epoch > opt.niter:
model.module.update_learning_rate_warp(optimizer_warp)
model.module.update_learning_rate(optimizer_gen)
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