5.8. Posterize Tool

Revision History
Revision $Revision: 1929 $ 2006-02-16 j.h

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.

5.8.1.  Activate Tool

The Posterize Dialog can be called in the following order, from the image-menu: ToolsColor ToolsPosterize

or by double-cliking on the icon in ToolBox, if Color Tools have been added to it.

5.8.2.  Options

Figure 12.75.  Posterize tool options

Posterize tool options

Posterize Levels

This slider and the input boxes with arrow-heads allow you to set the number of levels (2-256) in each RGB channel that the tool will use to describe the active layer. The total number of colors is the combination of these levels. A level to 3 will give 23 = 8 colors.


The Preview checkbox makes all changes dynamically so that they can be viewed straight away.