Comments (2)
Q1: We assume the GT kernel is unknown and also its size. KernelGAN estimates a 13x13, 25x25 kernel for X2, X4 respectively. These are sizes we found give a wide enough and "natural" support (a larger one blurs too much and a smaller is not expressive enough). If you want to compare two different size kernels - you may pad the smaller one with zeros without effecting its blur function.
Q2: As written in the paper, all the regularizations are inserted after the bicubic constraint is satisfied and discarded. The final co-efficients are as written in the paper (and you quoted). The parameters you snapped are at the beginning of the training before the bicubic "satisfaction".
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Besides, the code seems used different parameter for losses from the paper
paper:
code parameters:
Please correct me if I configed the code wrong.
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Related Issues (20)
- X4 kernel specs in DIV2KRK HOT 1
- It seems like a bug?
- UnknownError: Failed to get convolution algorithm. This is probably because cuDNN failed to initialize HOT 5
- RuntimeError: cuDNN error: CUDNN_STATUS_BAD_PARAM HOT 2
- network parameter asking HOT 6
- Why do you swap axis? HOT 2
- why not directly save the params of Generator for downscaling? why not non-linear? HOT 3
- Question about the DownScaleLoss HOT 1
- About DIV2KRK HOT 1
- about Generator and Discriminator output size HOT 5
- Questions about generator networks HOT 2
- How do you generate such an image? HOT 8
- How do you visualize the ".mat" files HOT 3
- There was a problem with training in another data set HOT 1
- How to gain the PSNR and SSIM HOT 2
- What's the meaning of "input-dir" and "input_img_path"
- Is your training data set the same as your test set HOT 2
- Why there needs flip orperation when calculate the kernel ? HOT 1
- No file .mat HOT 1
- ValueError: shapes (512,512,1) and (3,) not aligned: 1 (dim 2) != 3 (dim 0) HOT 2
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