Deep Learning Dictionary - Lightweight Crash Course

Convolution Operation - Deep Learning Dictionary

Convolutional neural networks (CNNs) are made up of convolutional layers, which contain small matrices called filters that transform their inputs by performing a convolution operation.

When a convolution operation is performed between a convolutional filter and the layer input, we say that the filter is convolving the input. We'll now illustrate this operation with an example to show what exactly it entails.