JasPer

JasPer is a computer software project to create a reference implementation of the codec specified in the JPEG-2000 Part-1 standard (i.e. ISO/IEC 15444-1) - started in 1997 at Image Power Inc. and at the University of British Columbia.[3] It consists of a C library and some sample applications useful for testing the codec.

JasPer
Original author(s)The University of British Columbia, Michael David Adams, Image Power, Inc.
Initial release1999 (1999)[1]
Stable release
4.2.3[2] Edit this on Wikidata / 30 March 2024 (30 March 2024)
Repository
Operating systemOSX, Windows, POSIX
Available inC
Typegraphic software
LicenseJasPer License Version 2.0
Websitewww.ece.uvic.ca/~mdadams/jasper/

The copyright owner began licensing the code to the public under an MIT License-style license in 2004 in response to requests from the open-source community. As of 2011 JasPer operated as a component of many software projects, both free and proprietary, including (but not limited to) netpbm (as of release 10.12), ImageMagick and KDE[4] (as of version 3.2).[5][6] As of 22 June  2010 the GEGL graphics library supported JasPer in its latest Git versions.[7]

In a series of objective JPEG-2000-compression quality tests conducted in 2004, "JasPer was the best codec, closely followed by IrfanView and Kakadu".[8] However, Jasper remains one of the slowest implementations of the JPEG-2000 codec, as it was designed for reference, not performance.

Etymology

The name "JasPer" has simultaneous connotations with Canada's Jasper National Park, with the semi-precious gemstone, jasper, and with "JP" as an abbreviation of the JPEG-2000 standard.[9]

See also

References
  1. "JasPer library: an open source JPEG 2000 codec". Retrieved 2010-07-28.
  2. "Release 4.2.3". 30 March 2024. Retrieved 23 April 2024.
  3. "Image Power and the University of British Columbia Team Up in Development of Digital Image Compression Technology". Press release. Vancouver, British Columbia, Canada: Image Power Inc. May 1, 1997. Archived from the original on 2006-10-24.
  4. "KDE TechBase - Development/Architecture/KDE3/Imaging and Animation". Retrieved 2010-01-20.
  5. "The JasPer Project Home Page". Retrieved 2010-01-20.
  6. "XnView User Guide". Retrieved 2010-01-20.
  7. "The GEGL source code git repository". 22 June 2010. Retrieved 2010-07-28.
  8. Ebrahimi, Farzad; Chamik, Matthieu; Winkler, Stefan (November 2004). "JPEG vs. JPEG2000: An Objective Comparison of Image Encoding Quality". In Tescher, Andrew G. (ed.). Applications of Digital Image Processing XXVII. Proceedings of the SPIE. Vol. 5558. pp. 300–308. CiteSeerX 10.1.1.65.5495. doi:10.1117/12.564835.
  9. Adams, Michael D. (2001-12-25). "JasPer Software Reference Manual Version 1.500.4" (PDF). p. 20. Archived from the original (PDF) on 2012-04-26. Retrieved 2011-12-11. The JasPer software is named, in part, after Jasper National Park. [...] 'jasper' is also the name of an opaque cryptocrystalline variety of quartz used for ornamentation or as a gemstone - hence, the implication that the software is precious (i.e., like a gemstone). Lastly, the name "jasper" [...] contains a letter "J" followed subsequently by a letter "P", not unlike the abbreviation "JP" that is associated with the JPEG-2000 standard.

Notes:


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