Image normalisation before LPIPS evaluation

[Pixie8888]

Hi, I have a question about image normalisation before LPIPS evaluation. It seems that image must be normalised to [-1, 1] before evaluation? I saw some paper normalise image to [0,1] or use imagenet std and means to normalise, will they affect evaluation?

[richzhang]

If your image is normalized to [0,1], turn on the normalize flag and the LPIPS.forward function will normalize it to [-1, 1]. The mean and std were adjusted to expect [-1, +1] https://github.com/richzhang/PerceptualSimilarity/blob/master/lpips/lpips.py#L150

[DISAPPEARED13]

Have you solve this problem? @Pixie412 , I've met the same bug with you!