How/Where is the skeleton image embedding implemented?

[jysa01]

Hello @Ha0Tang ,
I read through the GestureGAN paper and noticed under Experimental setup that the skeleton images are embedded by passing through an encoder. I cannot identify where this has been implemented in the code.
The dataloader seggregates the incoming input image into four 256x256 blocks - RealA, RealB, RealC, RealD. This is then fed to the model using set_input function. Am I missing something here? Kindly help

Thanks,
jysa01