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  ▸  Degradations  ▸  light_patch◀  cracks    |    pixelize  ▶

light_patch

Arguments:

  • _density>0,_darkness>=0,_lightness>=0

Description:

Add light patches to selected images.

Default values:

density=10, darkness=0.9 and lightness=1.7.

Example of use:

image.jpg +light_patch 20,0.9,4

Command: image.jpg +light_patch 20,0.9,4
Command: image.jpg +light_patch 20,0.9,4
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.