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OpenEXR OpenEXR is a high dynamic-range (HDR) image file format developed by Industrial Light & Magic for use in computer imaging applications. OpenEXR is used by ILM on all motion pictures currently in production. The first movies to employ OpenEXR were Harry Potter and the Sorcerers Stone, Men in Black II, Gangs of New York, and Signs. Since then, OpenEXR has become ILM's main image file format. PhotoPrint PhotoPrint is a utility designed to assist in the process of printing digital photographs under Linux and other UNIX-like operating systems. PixelStruct PixelStruct is a tool for visualizing 3D scenes reconstructed from photographs. It uses the structure-from-motion system Bundler, which is based on the same research as Microsoft Live Labs Photosynth.