I don't know if the author found that in the DIV2K validation set, there was a photo with a size of "0830. png" that had black edges on the top and bottom when cut to 1024x1024. After my testing, I found that this would lead to higher values when calculating PSNR and SSIM.
I don't know if the author found that in the DIV2K validation set, there was a photo with a size of "0830. png" that had black edges on the top and bottom when cut to 1024x1024. After my testing, I found that this would lead to higher values when calculating PSNR and SSIM.