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

A Full-Featured Open-Source Framework for Image Processing

Latest stable version: 3.5.5        Current pre-release: 3.6.0 (2025/06/19)

Reference

Table of Contents  ▸  List of Commands  ▸  Artistic  ▸  light_relief◀  lightrays    |    linify  ▶

light_relief

Arguments:

Description:

Apply relief light to selected images.

Default values(s) : ambient_light=0.3, specular_lightness=0.5, specular_size=0.2, darkness=0, xl=0.2, yl=zl=0.5,
zscale=1, opacity=1 and opacity_is_heightmap=0.

Example of use:

image.jpg blur 2 light_relief 0.3,4,0.1,0

Command: image.jpg blur 2 light_relief 0.3,4,0.1,0
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.