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: 3.6.1 (2025/08/26)

Reference
Table of Contents  ▸  List of Commands  ▸  Colors  ▸  retinex◀  replace_color    |    rgb2bayer  ▶

retinex

Arguments:

  • _value_offset>0,_colorspace={ hsi | hsv | lab | lrgb | rgb | ycbcr },0<=_min_cut<=100,0<=_max_cut<=100,_sigma_low>0,_sigma_mid>0,_sigma_high>0

Description:

Apply multi-scale retinex algorithm on selected images to improve color consistency.

(as described in the page http://www.ipol.im/pub/art/2014/107/).

Default values:

offset=1, colorspace=hsv, min_cut=1, max_cut=1, sigma_low=15,sigma_mid=80 and sigma_high=250.

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.