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: 3.5.6 (2025/06/17)

Reference

Table of Contents  ▸  List of Commands  ▸  Colors  ▸  deltaE◀  count_colors    |    direction2rgb  ▶

deltaE

Arguments:

Description:

Compute the CIE DeltaE color difference between selected images and specified [image].

Argument to_Lab_command is a command able to convert colors of [image] into a Lab representation.

Default values:

metric=1 and to_Lab_command="srgb2lab".

Example of use:

image.jpg +blur 2 +deltaE[0] [1],1,srgb2lab

Command: image.jpg +blur 2 +deltaE[0] [1],1,srgb2lab
Command: image.jpg +blur 2 +deltaE[0] [1],1,srgb2lab
Command: image.jpg +blur 2 +deltaE[0] [1],1,srgb2lab
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.