OpenJPEG

What is OpenJPEG ?

OpenJPEG is an open-source JPEG 2000 codec written in C language. It has been
developed in order to promote the use of JPEG 2000, a still-image compression
standard from the Joint Photographic Experts Group (JPEG). Since may 2015, it
is officially recognized by ISO/IEC and ITU-T as a JPEG 2000 Reference
Software.

Who can use the code ?

Anyone. As the OpenJPEG code is released under the 2-clauses BSD license,
anyone can use or modify the code, even for commercial applications. The only
restriction is to retain the copyright in the sources or in the binaries
documentation. Of course, if you modified the code in a way that might be of
interest for other users, you are encouraged to share it (through a github pull
request or by filling an issue) but this is not a requirement.

Who supports the project ?

The library has been created and is still maintained by the Image and Signal
Processing Group (ISPGroup), in the Université de Louvain (UCL). It has been
long-term supported by intoPIX and also punctually by

    the Digital Signal Processing Lab (DSPLab) of the University of Perugia,
Italy (UNIPG) for the JPWL implementation (2006)
    the Centre National d'Etudes Spatiales (CNES) for the work on OpenJPEG 2.0
(2011-2012)

It currently benefits from a funding from several academic institutions and
archival organizations:

    Wellcome Library
    Stanford University
    Nationale Bibliotheek van Nederland (KBNL)
    University of Michigan
    University of California, Los Angeles (UCLA)

This funding has been made possible thanks to the support of the International
Image Interoperability Framework (IIIF) and the Council on Library and
Information Resources (CLIR). As announced here, the goal of this funding is to
improve the speed and robustness of the library. Releases with better
performances are therefore expected by the end of 2017.