axis symmetry?

[danieleghisi]

Hi,

even if I feed as data black&white images with lots of white on the left side, I end up having samples as if also the vertical-mirrored images were in the data. I suspect that the algorithm doesn't care about axis symmetry, but I would like to keep the generated images "left-handed".

Is this a feature? Is there any parameter I might tweak to disable this symmetry forcing?

Thanks,
Daniele

[fonfonx]

Look at https://github.com/soumith/dcgan.torch/blob/master/data/donkey_folder.lua#L67. When the data is loaded, images are randomly flipped. Commenting this line may solve your problem.

[danieleghisi]

Thanks a lot, that makes sense!