Question about Training

[Tes958]

Hi,
I want to ask the file "srfbn_arch.py".
in 123, 124, 125 lines:
RGB mean for DIV2K
rgb_mean = (0.4488, 0.4371, 0.4040)
rgb_std = (1.0, 1.0, 1.0)

Do the lines also work for the training dataset "DF2K"(div2k and flickr2k)?
or it may be modified or commented when I want to use DF2K dataset for training?
I followed the training pipeline but I couldn't achieve the PSNR mentioned in the paper.
So, I guess maybe these lines should be dealt with.

Thank in advance.