vzhou842/cnn-from-scratch

A Convolutional Neural Network implemented from scratch (using only numpy) in Python.

cnn-from-scratch's Issues

Using 2 Conv Layer

Hello.

Thank for such an amazing code. It has helped me a lot in understanding.

I am trying to add another Conv layer.
I was able to change conv to a 3d conv layer.
The forward propagation works fine.
but in backward propagation, I am unable to pass derivatives from one conv layer to the other.

Is it possible for you to show me how I can calculate dL/dInput for the conv layer. (the gradient which will be passed from second conv layer to the first conv layer during backpropagation)