The CImg Library

International audienceThe CImg Library is a minimal, easy-to-use, and capable C++ image processing library aiming to help developers implementing new image processing algorithms, from scratch. The library is versatile enough to deal with a large number of image types (from 1D-signals to temporal sequences of 3D-hyperspectral volumes), with any type of pixel values. At the same time, it is extremely straightforward to learn and to use. It proposes indeed a minimal set of four classes, all defined in a single C++ header file CImg.h that has very few (and adjustable) dependencies to third-party libraries. This makes CImg a small and handy image processing library, portable everywhere (supports multiple OS, CPU-architectures and compilers) and comfortable to maintain. Moreover, we introduce G'MIC, a simple script-language wrapping the CImg functionalities, so that all features of the library become available for a broader audience (non C++-programmers) who can use it either from the shell or from an interactive GUI