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: 3.6.2        Current pre-release: 3.6.3 (2025/10/08)

Reference
Table of Contents  ▸  List of Commands  ▸  3D Meshes  ▸  pca_patch3d◀  parametric3d    |    plane3d  ▶

pca_patch3d

Arguments:

  • _patch_size>0,_M>0,_N>0,_normalize_input={ 0:No | 1:Yes },_normalize_output={ 0:No | 1:Yes },_lambda_xy

Description:

Get 3D patch-pca representation of selected images.

The 3D patch-pca is estimated from M patches on the input image, and displayed as a cloud of N 3D points.

Default values:

patch_size=7, M=1000, N=3000, normalize_input=1, normalize_output=0, and lambda_xy=0.

Example of use:

<a href="image.jpg" class="highslide" onclick="return hs.expand(this)">image.jpg</a> pca_patch3d 7

Command: <a href="image.jpg" class="highslide" onclick="return hs.expand(this)">image.jpg</a> pca_patch3d 7
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.