G'MIC - GREYC's Magic for Image Computing: A Full-Featured Open-Source Framework for Image Processing

A Full-Featured Open-Source Framework for Image Processing

Home
News
Download
Resources
- Technical Reference
- Scripting Tutorial
- Video Tutorials
- Wiki Pages
- Image Gallery
- Color Presets
- Using libgmic
- G'MIC Online
Community
- Discussion Forum (Pixls.us)
- GimpChat
- IRC
Report Issue

Latest stable version: 3.5.5 Current pre-release: 3.6.0 (2025/07/04)

Reference

Table of Contents ▸ List of Commands ▸ Colors ▸ compose_channels

◀ colormap | count_colors ▶

compose_channels

Arguments:

_operator

Description:

Compose all channels of each selected image, using specified arithmetic operator (+,-,or,min,...).

Default values:

operator=+.

This command has a tutorial page.

Example of use:

image.jpg +compose_channels and

Command: image.jpg +compose_channels and

Command: image.jpg +compose_channels and

G'MIC - GREYC's Magic for Image Computing: A Full-Featured Open-Source Framework for Image Processing

G'MIC is an open-source software distributed under the CeCILL free software licenses (LGPL-like and/or
GPL-compatible). Copyrights (C) Since July 2008, David Tschumperlé - GREYC UMR CNRS 6072, Image Team.