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Opj logo.png
Original author(s) Hervé Drolon, François-Olivier Devaux, Antonin Descampe, Yannick Verschueren, David Janssens, Benoît Macq
Initial release December 15, 2005 (2005-12-15)[1]
Stable release 2.0 / December 1, 2012; 19 months ago (2012-12-01)[2]
Preview release 2.0 alpha / May 21, 2009; 5 years ago (2009-05-21)[2]
Development status Active
Written in C
Operating system Mac OS X, Windows, POSIX
Type graphic software
License BSD

OpenJPEG is an open-source library to encode and decode JPEG 2000 images.

Support for lossless 16-bit images[edit]

Unlike JasPer,[3] another open-source JPEG 2000 implementation, OpenJPEG fully respects the JPEG 2000 specification and can compress/decompress lossless 16-bit images.[citation needed]


OpenJPEG is a fork of libj2k, a JPEG-2000 codec library written by David Janssens during his master thesis at UCL in 2001.

See also[edit]


  1. ^ "OpenJPEG library : an open source JPEG 2000 codec". Retrieved 2011-01-12. 
  2. ^ a b "Download - openjpeg - Project Hosting on Google Code". Retrieved 2012-04-14. 
  3. ^ Mathieu Malaterre (30 Jun 2005). "Re: [Dcmlib jpeg 2000]". comp.protocols.dicom.

External links[edit]