# Feature Map

> Source: https://sukruyusufkaya.com/en/glossary/feature-map
> Updated: 2026-05-13T20:00:49.494Z
> Type: glossary
> Category: derin-ogrenme
**TLDR:** The spatial activation representation produced by a convolution layer through specific filters.

<p>A feature map is one of the central structures that reveals what local patterns a CNN has extracted from an image or other grid-like data. Each filter is sensitive to a different kind of structure and produces its own activation map. As the network deepens, these maps evolve into more abstract visual representations. It is a key concept for understanding how CNNs perceive data.</p>