JasPer
| Original author(s) | The University of British Columbia, Michael David Adams, Image Power, Inc. |
|---|---|
| Initial release | 1999[1] |
| Stable release | 4.2.4[2] 
/ 27 April 2024 |
| Repository | |
| Operating system | OSX, Windows, POSIX |
| Available in | C |
| Type | graphic software |
| License | JasPer License Version 2.0 |
| Website | www |
JasPeris a computer software project to create areference implementationof thecodecspecified in theJPEG-2000Part-1 standard (i.e. ISO/IEC 15444-1) - started in 1997 at Image Power Inc. and at theUniversity of British Columbia.[3]It consists of aClibraryand some sample applications useful for testing the codec.
The copyright owner began licensing the code to the public under anMIT License-style license in 2004 in response to requests from theopen-sourcecommunity. As of 2011[update]JasPer operated as a component of many software projects, both free and proprietary, including (but not limited to)netpbm(as of release 10.12),ImageMagickandKDE[4](as of version 3.2).[5][6]As of 22 June 2010[update]theGEGLgraphics library supported JasPer in its latestGitversions.[7]
In a series of objective JPEG-2000-compression quality tests conducted in 2004, "JasPer was the best codec, closely followed byIrfanViewandKakadu".[8] However, Jasper remains one of the slowest implementations of the JPEG-2000 codec, as it was designed for reference, not performance.[original research?]
Etymology
[edit]The name "JasPer" has simultaneous connotations with Canada'sJasper National Park,with the semi-precious gemstone,jasper,and with "JP" as an abbreviation of the JPEG-2000 standard.[9]
See also
[edit]References
[edit]- ^"JasPer library: an open source JPEG 2000 codec".Retrieved2010-07-28.
- ^"Release 4.2.4".27 April 2024.Retrieved23 May2024.
- ^"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 fromthe originalon 2006-10-24.
- ^"KDE TechBase - Development/Architecture/KDE3/Imaging and Animation".Retrieved2010-01-20.
- ^"The JasPer Project Home Page".Retrieved2010-01-20.
- ^"XnView User Guide".Retrieved2010-01-20.
- ^"The GEGL source code git repository".22 June 2010.Retrieved2010-07-28.
- ^ 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.CiteSeerX10.1.1.65.5495.doi:10.1117/12.564835.
- ^
Adams, Michael D. (2001-12-25)."JasPer Software Reference Manual Version 1.500.4"(PDF).p. 20. Archived fromthe original(PDF)on 2012-04-26.Retrieved2011-12-11.
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:
- Adams, Michael D.; Ward, Rabab K. (May 2004). "JasPer: a portable flexible open-source software tool kit for image coding/processing".IEEE International Conference on Acoustics, Speech, and Signal Processing, 2004. Proceedings. (ICASSP '04)(PDF).doi:10.1109/ICASSP.2004.1327092.ISBN0-7803-8484-9.
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