# Posterize

## Overview

Example for the Posterize filter

Original image

Posterize with 3 levels applied

This tool is designed to intelligently weigh the pixel colors of the selection or active layer and reduce the number of colors while maintaining a semblance of the original image characteristics.

## Activating the Filter

This filter is found in the main menu under Colors Posterize… .

## Options

Posterize filter dialog

Presets

  Presets are a common feature for several Colors commands. You can find its description in .

Posterize Levels

  Here, level means number of colors per channel .

  This slider and the input boxes with arrowheads allow you to set the number of levels (2-256) in each RGB channel that the tool uses to describe the active layer. The maximum total number of colors is the combination of these levels. A level to 3 will give 33 = 27 colors.

Blending Options, Preview and Split view

  These are common features described in .

Colors Posterize
Posterize