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  ▸  apply_curve◀  xor    |    apply_gamma  ▶

apply_curve

Arguments:

  • 0<=smoothness<=1,x0,y0,x1,y1,x2,y2,...,xN,yN

Description:

Apply curve transformation to image values.

Default values:

smoothness=1, x0=0, y0=100.

Example of use:

image.jpg +apply_curve 1,0,0,128,255,255,0

Command: image.jpg +apply_curve 1,0,0,128,255,255,0
Command: image.jpg +apply_curve 1,0,0,128,255,255,0
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.