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

Latest stable version: 3.5.5        Current pre-release: 3.6.0 (2025/08/04)

Reference
Table of Contents  ▸  List of Commands  ▸  Values Manipulation  ▸  negate◀  mix_channels    |    noise  ▶

negate

Arguments:

  • base_value    or
  • (no arg)

Description:

Negate image values.

Default values:

base_value=(undefined).

Example of use:

image.jpg +negate

Command: image.jpg +negate
Command: image.jpg +negate
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.