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v3dlib library is a cross-platform C++ library written in wxWidgets for displaying 3D images. The most important part of the library is a window that can display 3D images of various types (RGB, RGB16, GRAY8, GRAY16, and float). The window can easily be extended of a new functionality and is used in many applications (e.g., viewer3d, Acquiarium, batchcrop, and others).

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OpenCV is released under a BSD license and hence it’s free for both academic and commercial use. It has C++, C, Python and Java interfaces and supports Windows, Linux, Mac OS, iOS and Android. OpenCV was designed for computational efficiency and with a strong focus on real-time applications. Written in optimized C/C++, the library can take advantage of multi-core processing. Adopted all around the world, OpenCV has more than 47 thousand people of user community and estimated number of downloads exceeding 6 million. Usage ranges from interactive art, to mines inspection, stitching maps on the web or through advanced robotics.