Gmicky, the G'MIC mascot
(artwork by David Revoy)


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      G'MIC is a full-featured open-source framework for image processing, distributed under the CeCILL free software licenses (LGPL-like and/or GPL-compatible). It provides several user interfaces to convert / manipulate / filter / visualize generic image datasets, ranging from 1D scalar signals to 3D+t sequences of multi-spectral volumetric images, hence including 2D color images.

G'MIC user interfaces are:

1 - gmic, a command-line tool to use the G'MIC image processing features from a shell. In this setting, G'MIC may be seen as a friendly companion to the ImageMagick or GraphicsMagick software suites.

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gmic, the command-line interface of G'MIC.

2 - libgmic, a small, portable, thread-safe and multi-threaded, C++ image processing library to be linked to third-party applications. Its simple API allows programmers to add all G'MIC features in their own software without much efforts (a C API is available as well).

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libgmic, a small, thread-safe, multi-threaded, C++ image processing library to embed all G'MIC features in third-party applications.

3 - G'MIC-Qt, a plug-in to bring G'MIC capabilities to the image retouching and painting software GIMP, Krita and Paint.NET. More than 500 filters are already available, sorted by category (Artistic, Black & white, Colors, Contours, Deformations, Degradations, Details, Color Grading, Frames, Layers, Light & shadows, Patterns, Rendering, Repair, Sequences, etc.).

[download...]


The G'MIC plug-in in action!

4 - G'MIC Online, a web service to allow users applying image processing algorithms on their images, directly from a web browser.

[try it now...]


G'MIC Online, the web service to use G'MIC from a browser.

5 - ZArt

Screenshot of ZArt in action.

, a Qt-based interface for real-time processing of video streaming coming from webcams or video files.

[learn more...]


ZArt, a real-time video processing software using the G'MIC processing library.


Other open-source projects are known to use some of the G'MIC features:
  • EKD, a free software dedicated to postproduction processing for videos and images.
  • Flowblade, a multitrack non-linear video editor for Linux released under GPL 3 license.
  • Photoflow, a fully non-destructive photo retouching program.
  • Veejay, a visual instrument and realtime video sampler.

The G'MIC source code has been registered to the APP (French Agency for the Protection of Programs) by the CNRS, under registration number:
IDDN.FR.001.170024.000.S.P.2017.000.21000.