GIMP User Manual
Prev | Chapter 13. Filters | Next

# Alien Map 2

## Overview

The Alien Map 2 filter is a color manipulation filter based on the Alien Map filter. Alien Map 2 is much more advanced in that it can perform calculations based not only on the RGB properties of the active image or layer, but also the HSL properties of the active image. More control of the math involved is possible, allowing the user to adjust the Frequency and the Phaseshift values which can yield more profound transformations.

## Alien Map 2 Options

Alien Map 2 Settings

Mode

  There are two available options for Mode.

  - RGB Color Model: This option will allow Alien Map 2 to work with Red, Green, and Blue colors only.

  - HSL Color Model: This option will allow Alien Map 2 to work within the Hue, Saturation, and Luminance of the image, layer, or selection.

Modify Red/Hue Channel

  This checkbox allows modifications to be made to the Red or Hue of the active selection or layer.

Modify Green/Saturation Channel

  This checkbox allows modifications to be made to the Green or Saturation of the active selection or layer.

Modify Blue/Luminance Channel

  This checkbox allows modifications to be made to the Blue or Luminance of the active selection or layer.

Frequency Sliders

  The Frequency sliders control changes to the applicable channel. The slider determines the frequency intensity at which the colors will be mapped.

Phaseshift Sliders

  The Phaseshift sliders control changes to the applicable channel. The slider determines the shift in frequency that will be used to map the channel colors.

## See also

Further information can be found in the glossary regarding: Channels and HSL

Prev | Home | Next
Adjust FG-BG / Color Range Mapping | Up | Alien Map