User Guide

GNU Image Manipulation Program
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Chapter 15
Filters
15.1 Introduction
A filter is a special kind of tool designed to take an input layer or image, apply a mathematical algorithm to it, and return the
input layer or image in a modified format. GIMP uses filters to achieve a variety of effects and those effects are discussed here.
The filters are divided into several categories:
• Blur see Section 15.2.
• Colors see Section 15.3.
• Noise see Section 15.4.
• Edge-Detect see Section 15.5.
• Enhance see Section 15.6.
• Generic see Section 15.7.
• Glass Effects see Section 15.8.
• Light Effects see Section 15.9.
• Distorts see Section 15.10.
• Artistic see Section 15.11.
• Map see Section 15.12.
• Render see Section 15.13.
• Web see Section 15.16.
• Animation see Section 15.15.
• Combine see Section 15.14.