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: 4.0.4 (2026/08/19)

Reference
Table of Contents  ▸  List of Commands  ▸  Reptorian's Commands  ▸  rep_rainbowify◀  rep_complexion_burst    |    rep_weighted_rgb82gray  ▶

rep_rainbowify

Arguments:

  • -360<_hue_shift<360,-360<_gradient_angle<360,_gradient_scale[%]>0

Description:

Apply rainbowify effect into image. Inspired by Rainbowify effect made by Jonathan Frech. The original source of the Rainbowify effect is found in the following URL - https://blog.jfrech.com/180/.

Default values:

_hue_shift=0,_gradient_angle=0,_gradient_angle=100%


Author: Reptorian.
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.