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  ▸  Geometry Manipulation  ▸  extract_region◀  extract    |    montage  ▶

extract_region

Arguments:

  • [label_image],_extract_xyz_coordinates={ 0:No | 1:Yes },_label_1,...,_label_M

Description:

Extract all pixels of selected images whose corresponding label in [label_image] is equal to label_m,

and output them as M column images.

Default values:

extract_xyz_coordinates=0.

Example of use:

image.jpg +blur 3 quantize. 4,0 +extract_region[0] [1],0,1,3

Command: image.jpg +blur 3 quantize. 4,0 +extract_region[0] [1],0,1,3
Command: image.jpg +blur 3 quantize. 4,0 +extract_region[0] [1],0,1,3
Command: image.jpg +blur 3 quantize. 4,0 +extract_region[0] [1],0,1,3
Command: image.jpg +blur 3 quantize. 4,0 +extract_region[0] [1],0,1,3
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.