Hoofdstuk 16. Filters
| Deel III. De GIMP Functielijst |

## Hoofdstuk 16. Filters

## 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:

- Paragraaf 2, “Blur Filters”

- Paragraaf 3, “Enhance Filters”

- Paragraaf 4, “Distort Filters”

- Paragraaf 5, “Light and Shadow Filters”

- Paragraaf 6, “Noise Filters”

- Paragraaf 7, “Edge-Detect Filters”

- Paragraaf 8, “Generic Filters”

- Paragraaf 9, “Combine Filters”

- Paragraaf 10, “Artistic Filters”

- Paragraaf 11, “Decor Filters”

- Paragraaf 12, “Map Filters”

- Paragraaf 13, “Rendering Filters”

- Paragraaf 14, “ Web Filters ”

- Paragraaf 15, “Animation Filters”

- Paragraaf 16, “Alpha to Logo Filters”

### 1.1. Preview

Most filters have a Preview where changes in the image are displayed, in real time (if the “Preview” option is checked), before being applied to the image.

Figuur 16.1. Preview submenu

Right clicking on the Preview window opens a submenu which lets you set the Style and the Size of checks representing transparency.

12.8. GIMP online |  | 2. Blur Filters