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 (2025/07/18)

Reference

Table of Contents  ▸  List of Commands  ▸  Filtering  ▸  denoise_patchpca◀  denoise_cnn    |    deriche  ▶

denoise_patchpca

Arguments:

Description:

Denoise selected images using the patch-pca algorithm.

Default values:

patch_size=7, lookup_size=11, details=1.8 and spatial_sampling=5.

Example of use:

image.jpg +noise 20 cut[-1] 0,255 +denoise_patchpca[-1] ,

Command: image.jpg +noise 20 cut[-1] 0,255 +denoise_patchpca[-1] ,
Command: image.jpg +noise 20 cut[-1] 0,255 +denoise_patchpca[-1] ,
Command: image.jpg +noise 20 cut[-1] 0,255 +denoise_patchpca[-1] ,
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.