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 (2025/07/24)

Reference

Table of Contents  ▸  List of Commands  ▸  Mathematical Operators  ▸  mod◀  minabs    |    mmul  ▶

mod

Built-in command

Arguments:

Description:

Compute the modulo of selected images with specified value, image or mathematical expression, or compute the pointwise sequential modulo of selected images.

(equivalent to shortcut command %).

Examples of use:

• Example #1

image.jpg +mirror x n. 1,255 round. mod

Command: image.jpg +mirror x n. 1,255 round. mod

• Example #2

image.jpg mod 'R=((x/w-0.5)^2+(y/h-0.5)^2)^0.5;255*R'

Command: image.jpg mod 'R=((x/w-0.5)^2+(y/h-0.5)^2)^0.5;255*R'
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.