I was trying my first NN on pytorch with refrence to this 5 article on coloring black and white images. After implementing the code in pytorch,  what i am getting is tensor full of zeros out of my model on every image.
This method converts RGB image in LAB format and then tries to predict ‘a’ and ‘b’ of lab format using convolution network. I have made a ‘MODEL’ class for this and using its two object ‘model_a’ and ‘model_b’  for ‘a’ and ‘b’ parameters respectively.
I don’t know whats happening can someone please help me understanding what my issue is.
Thank you
mycode 13