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.[2] 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
2.0.16 / March 12, 2019 (2019-03-12)
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[3] (as of version 3.2).[4][5] As of 22 June  2010 the GEGL graphics library supported JasPer in its latest Git versions.[6]

In a series of objective JPEG-2000-compression quality tests conducted in 2004, "JasPer was the best codec, closely followed by IrfanView and Kakadu".[7] 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.[8]

gollark: Well, ultimately, someone has to pay for them?
gollark: i.e. it does not "only affect you", like smile dog said.
gollark: That affects other people, so I think most libertarians would say something should be done about that.
gollark: I mean, there was this person who said that "any technology which takes away jobs from humans should be banned", and I don't see how you would reasonably end up thinking that.
gollark: I feel the same about some views. Some make some sense to me, some... don't really.

See also

References
  1. "JasPer library : an open source JPEG 2000 codec". Retrieved 2010-07-28.
  2. "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.
  3. "KDE TechBase - Development/Architecture/KDE3/Imaging and Animation". Retrieved 2010-01-20.
  4. "The JasPer Project Home Page". Retrieved 2010-01-20.
  5. "XnView User Guide". Retrieved 2010-01-20.
  6. "The GEGL source code git repository". Retrieved 2010-07-28.
  7. Farzad 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. 5558. Genista Corporation. pp. 300–308. CiteSeerX 10.1.1.65.5495. doi:10.1117/12.564835.CS1 maint: uses authors parameter (link)
  8. 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.

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