New convolution

[b-remy]

Hi @JonnyyTorres ,

This PR is a attempt to fix the pattern we get in #5 . It adds a new convolution function which takes the PSF in Fourier space as input. I updated the dataset configuration file and the training script VAE_SD_C.py to make a few tests.

I couldn't perform a full training with a big dataset, but I didn't see any similar pattern in my tests.

You can already see that convolving galsim images with their associated PSF gives better results with the new code:

• first convolution code

• new convolution code

I commented the lines to register galaxies noise standard deviation to make faster experiments. I would be interested to see a full training with this configuration and make to complete dataset with the correct std in a second step.

[b-remy]

I did a longer test using the default flags of the VAE_SD_C.py script, so most likely not the best you found @JonnyyTorres, so the result are not as good as yours. But it loos like we don't see the convolution pattern anymore