def validation_step(self, batch, batch_idx):
self.global_valid_step += 1
input_batch, gt_batch, fname = batch[INPUT], batch[GT], batch[FPATH][0]
# todo: edit here:
# low_res_batch = self.down_sampler(input_batch)
# output_batch = self.net(low_res_batch, input_batch)
# log metrics
# if self.global_valid_step % 100 == 0:
psnr = util.ImageProcessing.compute_psnr(
util.cuda_tensor_to_ndarray(output_batch),
util.cuda_tensor_to_ndarray(gt_batch), 1.0
)
self.log(PSNR, psnr)
# log images
self.log_images_dict(
VALID,
osp.basename(fname),
{
INPUT: input_batch,
OUTPUT: output_batch,
GT: gt_batch,
}
)
return output_batch
def validation_step(self, batch, batch_idx):
# get output
input_batch, gt_batch = Variable(batch[INPUT], requires_grad=False), \
Variable(batch[GT], requires_grad=False)
output_batch, self.valid_metrics[
WEIGHTS_NORM] = self.eval_forward_one_img(input_batch)
# log images:
self.global_valid_step += 1
self.ia3dlut_log(VALID, self.global_valid_step, batch[FPATH][0],
input_batch, output_batch, gt_batch)
# get psnr
self.valid_metrics[PSNR] = util.ImageProcessing.compute_psnr(
util.cuda_tensor_to_ndarray(output_batch),
util.cuda_tensor_to_ndarray(gt_batch), 1.0)
# log metrics to pl and loggers
valid_metrics = {
f'{VALID}.{x}': y
for x, y in self.valid_metrics.items()
}
for x, y in valid_metrics.items():
# Tips: if call self.log with on_step=True here, metrics will bacome "valid.psnr/epoch_xxx"
# So just call without arguments.
self.log(x, y, prog_bar=True)
return output_batch
def test_step(self, batch, batch_ix):
# test without GT image:
input_batch, fname = batch[INPUT], batch[FPATH][0]
assert input_batch.shape[0] == 1
low_res_batch = self.down_sampler(input_batch)
output_batch = self.net(low_res_batch, input_batch)
self.save_one_img_of_batch(output_batch, self.opt[IMG_DIRPATH],
osp.basename(fname))
# save illu map:
if self.opt[RUNTIME][PREDICT_ILLUMINATION]:
illu_dirpath = Path(self.opt[IMG_DIRPATH]) / 'illu-map'
self.save_one_img_of_batch(self.net.illu_map, illu_dirpath,
osp.basename(fname))
# test with GT:
if GT in batch:
# calculate metrics:
output_ = util.cuda_tensor_to_ndarray(output_batch)
y_ = util.cuda_tensor_to_ndarray(batch[GT])
psnr = util.ImageProcessing.compute_psnr(output_, y_, 1.0)
ssim = util.ImageProcessing.compute_ssim(output_, y_)
self.log_dict({
PSNR: psnr,
SSIM: ssim
},
prog_bar=True,
on_step=True,
on_epoch=True)
def test_step(self, batch, batch_ix):
# test without GT image:
input_batch, fpaths = batch[INPUT], batch[FPATH]
output, _ = self.eval_forward_one_img(input_batch)
util.saveTensorAsImg(
output, osp.join(self.opt[IMG_DIRPATH], osp.basename(fpaths[0])))
# test with GT:
if GT in batch:
# calculate metrics:
psnr = util.ImageProcessing.compute_psnr(
util.cuda_tensor_to_ndarray(output),
util.cuda_tensor_to_ndarray(batch[GT]), 1.0)
self.log(PSNR, psnr, prog_bar=True)
return output
def training_step(self, batch, batch_idx):
# if not self.MODEL_WATCHED:
# self.logger.watch(self.luts)
# self.logger.watch(self.cnn)
# self.MODEL_WATCHED = True
# self.show_flops_and_param_num([batch[INPUT]])
# ipdb.set_trace()
# get output
input_batch, gt_batch = Variable(batch[INPUT], requires_grad=False), \
Variable(batch[GT], requires_grad=False)
output_batch, self.train_metrics[
WEIGHTS_NORM] = self.train_forward_one_batch(input_batch)
# calculate loss:
mse = self.criterion(output_batch, gt_batch)
tv_mn_pairs = [self.tv3(x) for x in self.luts]
self.train_metrics[TV_CONS] = sum([x[0] for x in tv_mn_pairs])
self.train_metrics[MN_CONS] = sum([x[1] for x in tv_mn_pairs])
# TODO: 多卡训练这里也有问题：
loss = (
mse + self.opt[RUNTIME][LAMBDA_SMOOTH] *
(self.train_metrics[WEIGHTS_NORM] + self.train_metrics[TV_CONS]) +
self.opt[RUNTIME][LAMBDA_MONOTONICITY] *
self.train_metrics[MN_CONS])
self.train_metrics[MSE] = mse
self.train_metrics[LOSS] = loss
# get psnr
self.train_metrics[PSNR] = util.ImageProcessing.compute_psnr(
util.cuda_tensor_to_ndarray(output_batch),
util.cuda_tensor_to_ndarray(gt_batch), 1.0)
# log to logger
for x, y in self.train_metrics.items():
self.log(x, y, prog_bar=True)
self.ia3dlut_log(TRAIN, self.global_step, batch[FPATH][0], input_batch,
output_batch, gt_batch)
return loss
def test_step(self, batch, batch_ix):
# test without GT image:
input_batch, fname = batch[INPUT], batch[FPATH][0]
output_dict = self.net(input_batch)
output = torch.clamp(output_dict[OUTPUT], 0.0, 1.0)
util.saveTensorAsImg(
output, os.path.join(self.opt[IMG_DIRPATH], osp.basename(fname)))
if PREDICT_ILLUMINATION in output_dict:
util.saveTensorAsImg(
output_dict[PREDICT_ILLUMINATION],
os.path.join(self.illumination_dirpath, osp.basename(fname)))
# test with GT:
if GT in batch:
# calculate metrics:
output_ = util.cuda_tensor_to_ndarray(output)
y_ = util.cuda_tensor_to_ndarray(batch[GT])
psnr = util.ImageProcessing.compute_psnr(output_, y_, 1.0)
ssim = util.ImageProcessing.compute_ssim(output_, y_)
self.log_dict({PSNR: psnr, SSIM: ssim}, prog_bar=True)
def validation_step(self, batch, batch_idx):
self.global_valid_step += 1
input_batch, gt_batch, fname = batch[INPUT], batch[GT], batch[FPATH][0]
low_res_batch = self.down_sampler(input_batch)
output_batch = self.net(low_res_batch, input_batch)
# log metrics
# if self.global_valid_step % 100 == 0:
psnr = util.ImageProcessing.compute_psnr(
util.cuda_tensor_to_ndarray(output_batch),
util.cuda_tensor_to_ndarray(gt_batch), 1.0)
self.log(PSNR, psnr)
# log images
self.log_images_dict(
VALID, osp.basename(fname), {
INPUT: input_batch,
OUTPUT: output_batch,
GT: gt_batch,
PREDICT_ILLUMINATION: self.net.illu_map,
GUIDEMAP: self.net.guidemap
})
return output_batch
def debug_tensor(tensor, name):
np.save(name, util.cuda_tensor_to_ndarray(tensor))