> actually cross-correlation That doesn't help one understand what it is at all. Convolution in DL is simply a set of dot products of a patch from the input wi

> actually cross-correlation That doesn't help one understand what it is at all. Convolution in DL is simply a set of dot products of a patch from the input with a bunch of filters. Each resulting dot product is simply a measure of similarity between a patch and a filter. That's all there is to it.