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View Code? Open in Web Editor NEWImplemeting Improving Facial Attribute Prediction using Semantic Segmentation using Pytorch
Implemeting Improving Facial Attribute Prediction using Semantic Segmentation using Pytorch
Hi,
I am trying to use your code for face part parsing on the helen dataset, the training process was fine, but during validation, the output are all black images, I suspect the weight becomes zero for validation, any suggestion on how to solve this problem?
Below is the modified code snippet for training and validation.
for epoch in range(args.start_epoch, args.epochs):
#train(train_loader, model, criterion, optimizer,epoch)
#result = validate(val_loader, model, criterion, epoch)
# training
training_top1 = AverageMeter()
training_losses = AverageMeter()
training_batch_time = AverageMeter()
model.train()
end = time.time()
for i, (name, input_img, target) in enumerate(train_loader):
target = target.cuda(async=True)
input_img = input_img.float().cuda()
input_var = torch.autograd.Variable(input_img)
target_var = torch.autograd.Variable(target)
output = model(input_var)
#output = output.permute(0,2,3,1)
#output = torch.max(output,dim=3)[0]
loss = criterion(output, target_var)
prec1 = accuracy(output.data, target, topk=(1,))[0]
training_losses.update(loss.item(), input_img.size(0))
training_top1.update(prec1.item(), input_img.size(0))
optimizer.zero_grad()
loss.backward()
optimizer.step()
training_batch_time.update(time.time() - end)
end = time.time()
print('Epoch: [{0}][{1}/{2}]\t'
'Time {training_batch_time.val:.3f} ({training_batch_time.avg:.3f})\t'
'Loss {training_losses.val:.4f} ({training_losses.avg:.4f})\t'
'Prec@1 {training_top1.val:.3f} ({training_top1.avg:.3f})'.format(
epoch, i, len(train_loader), training_batch_time=training_batch_time,
training_losses=training_losses, training_top1=training_top1))
# evaluation
eval_top1 = AverageMeter()
eval_losses = AverageMeter()
model.eval()
with torch.no_grad():
for i, (name, input_img, target) in enumerate(val_loader):
target = target.cuda(async=True)
input_img = input_img.float().cuda()
input_var = torch.autograd.Variable(input_img)
target_var = torch.autograd.Variable(target)
output = model(input_var)
loss = criterion(output, target_var)
prec1 = accuracy(output.data, target, topk=(1,))[0]
eval_losses.update(loss.item(), input_img.size(0))
eval_top1.update(prec1.item(), input_img.size(0))
Thank you.
in paper:
2017-CVPR-SSP-Improving Facial Attribute Prediction using Semantic Segmentation
the balance acc = 1/2 (tp/NP + tn / Nn)
Hi,
Thank you for your work! I want to see the result on my own picture.Can you provide the pretrained model to have a look ?
Thanks.
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