JasPer explained

JasPer
Author:The University of British Columbia, Michael David Adams, Image Power, Inc.
Released:[1]
Operating System:OSX, Windows, POSIX
Language:C
Genre:graphic software
License:JasPer License Version 2.0

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.

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. 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] 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]

See also

References

Notes:

Notes and References

  1. Web site: JasPer library: an open source JPEG 2000 codec . 2010-07-28.
  2. Web site: Image Power and the University of British Columbia Team Up in Development of Digital Image Compression Technology . Vancouver, British Columbia, Canada . May 1, 1997. Image Power Inc. . Press release . https://web.archive.org/web/20061024212316/http://www.imagepower.com/news/media_center/pr/1997/pr-may01-97.html . 2006-10-24.
  3. Web site: KDE TechBase - Development/Architecture/KDE3/Imaging and Animation . 2010-01-20.
  4. Web site: The JasPer Project Home Page . 2010-01-20.
  5. Web site: XnView User Guide . 2010-01-20.
  6. Web site: The GEGL source code git repository . 22 June 2010 . 2010-07-28.
  7. JPEG vs. JPEG2000: An Objective Comparison of Image Encoding Quality . Ebrahimi, Farzad . Chamik, Matthieu . Winkler, Stefan . Applications of Digital Image Processing XXVII. Proceedings of the SPIE . 5558 . 300–308 . November 2004 . Tescher, Andrew G. . 10.1117/12.564835 . 10.1.1.65.5495.
  8. Web site: JasPer Software Reference Manual Version 1.500.4 . Michael D. . Adams . 2001-12-25 . 20 . 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. . https://web.archive.org/web/20120426042407/http://iie.fing.edu.uy/ense/asign/codif/material/laboratorio/jpeg_2000/doc/jasper.pdf . 2012-04-26 .

This article is licensed under the GNU Free Documentation License. It uses material from the Wikipedia article "JasPer".

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