G'MIC is an open and full-featured framework for image processing in Gimp, providing several different user interfaces to convert/manipulate/filter/visualize generic image datasets, from 1d scalar signals to 3d+t sequences of multi-spectral volumetric images.Features: A portable and thread-safe C++ library 'libgmic' for generic image processing, embeddable in third-party applications. A command line interface 'gmic' to perform image processing operations from a shell. An easy-to-use plug-in 'gmic_gimp' which adds hundred of new filters to GIMP A web-service 'G'MIC Online', to apply image fiters directly on a web-browser. A Qt-based interface 'Zart' for real-time manipulation of webcam images. A complete script language to develop your own complex image processing pipelines.