Rescaling of ouput

[cutecows]

Thanks for the great repo!

I noticed that you scale your images to be between [0,1] or [-1,1]. I'd like to run the model with coordinate data, which doesn't lend itself well to scaling. I'm wondering if this is expected to significantly impact performance?

[zihaozou]

I think the main reason to scale the image to [-1,1] is that we start from a normal distribution