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![Lesson thumbnail for Convolution Operation - Deep Learning Dictionary](/assets/jpg/34296d47.jpg)
Deep Learning Course - Level: Beginner
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.
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