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: 3.5.3        Current pre-release: 3.5.4 (2025/04/13)

Reference

Table of Contents  ▸  List of Commands  ▸  Degradations  ▸  noise◀  light_patch    |    noise_hurl  ▶

noise

Built-in command

Arguments:

Description:

Add random noise to selected images.

noise_type can be { 0:Gaussian | 1:Uniform | 2:Salt&pepper | 3:Poisson | 4:Rice }.

Default values:

noise_type=0.

Examples of use:

• Example #1

image.jpg +noise[0] 50,0 +noise[0] 50,1 +noise[0] 10,2 cut 0,255

Command: image.jpg +noise[0] 50,0 +noise[0] 50,1 +noise[0] 10,2 cut 0,255
Command: image.jpg +noise[0] 50,0 +noise[0] 50,1 +noise[0] 10,2 cut 0,255
Command: image.jpg +noise[0] 50,0 +noise[0] 50,1 +noise[0] 10,2 cut 0,255
Command: image.jpg +noise[0] 50,0 +noise[0] 50,1 +noise[0] 10,2 cut 0,255

• Example #2

300,300,1,3 [0] noise[0] 20,0 noise[1] 20,1 +histogram 100 display_graph[-2,-1] 400,300,3

Command: 300,300,1,3 [0] noise[0] 20,0 noise[1] 20,1 +histogram 100 display_graph[-2,-1] 400,300,3
Command: 300,300,1,3 [0] noise[0] 20,0 noise[1] 20,1 +histogram 100 display_graph[-2,-1] 400,300,3
Command: 300,300,1,3 [0] noise[0] 20,0 noise[1] 20,1 +histogram 100 display_graph[-2,-1] 400,300,3
Command: 300,300,1,3 [0] noise[0] 20,0 noise[1] 20,1 +histogram 100 display_graph[-2,-1] 400,300,3
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.