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  ▸  Values Manipulation  ▸  otsu◀  orientation    |    polar2complex  ▶

otsu

Arguments:

  • _nb_levels>0

Description:

Hard-threshold selected images using Otsu's method.

The computed thresholds are returned as a list of values in the status.

Default values:

nb_levels=256.

Example of use:

image.jpg luminance +otsu ,

Command: image.jpg luminance +otsu ,
Command: image.jpg luminance +otsu ,
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.