Comments (4)
G_BA: domain B -> domain A,
It wants to realize identity map, f(x) = x.
In this case, If the input of G_BA is image in domain A (not in domain B), the output of G_BA should be the same as image in domain A.
As is shown in the picture (below) -> L_TID
refer to Unsupervised Cross-Domain Image Generation
and Unpaired Image-to-Image Translation using Cycle-Consistent Adversarial Networks
detailed explanation: junyanz/pytorch-CycleGAN-and-pix2pix#322
from pytorch-gan.
I think these issues from the original repo, especially the first one, might give you a better idea on what identity loss is.
1, 2
from pytorch-gan.
I have the same concern.
from pytorch-gan.
@IvanFei @busekuz
Thanks for your answers!
They are very helpful, especially the picture; I think now I do understand the identity loss.
Best Regards,
LQS
from pytorch-gan.
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