JasPer
| Original author(s) | The University of British Columbia, Michael David Adams, Image Power, Inc. |
|---|---|
| Initial release | 1999[1] |
| Stable release | 1.900.1 / January 19, 2007[1] |
| Operating system | OSX, Windows, POSIX |
| Available in | C |
| Type | graphic software |
| License | JasPer License Version 2.0 |
| Website | www.ece.uvic.ca/~mdadams/jasper/ |
JasPer, a 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 license changed in early 2004 to an MIT License-style one, in response to requests from the open source community. As of 2011[update] JasPer operates 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 June 22, 2010, GEGL graphics library has supported JasPer in its latest Git versions.[6]
In a series of objective JPEG2000 compression quality tests conducted in 2004, "JasPer was the best codec, closely followed by IrfanView and Kakadu."[7]
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[edit] 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]
[edit] See also
[edit] References
- ^ a b "JasPer library : an open source JPEG 2000 codec". http://www.ece.uvic.ca/~mdadams/jasper/. Retrieved 2010-07-28.
- ^ "Image Power and the University of British Columbia Team Up in Development of Digital Image Compression Technology". Press release. Vancouver, BC: Image Power Inc.. May 1, 1997. Archived from the original on 2006-10-24. http://web.archive.org/web/20061024212316/http://www.imagepower.com/news/media_center/pr/1997/pr-may01-97.html.
- ^ "KDE TechBase - Development/Architecture/KDE3/Imaging and Animation". http://techbase.kde.org/Development/Architecture/KDE3/Imaging_and_Animation. Retrieved 2010-01-20.
- ^ "The JasPer Project Home Page". http://www.ece.uvic.ca/~mdadams/jasper/. Retrieved 2010-01-20.
- ^ "XnView User Guide". http://www.xnview.com/wiki/index.php5?title=XnView_User_Guide. Retrieved 2010-01-20.
- ^ "The GEGL source code git repository". http://git.gnome.org/browse/gegl/commit/?id=d351c5fba3cc0796fb78e056af8eb7abb1e4b270. Retrieved 2010-07-28.
- ^ Farzad Ebrahimi, Farzad; Chamik,Matthieu; Winkler, Stefan (November 2004). "JPEG vs. JPEG2000: An Objective Comparison of Image Encoding Quality". In Tescher, Andrew G. (PDF). Applications of Digital Image Processing XXVII. Proceedings of the SPIE. 5558. pp. 300–308. doi:10.1117/12.564835. http://citeseerx.ist.psu.edu/viewdoc/download?doi=10.1.1.65.5495&rep=rep1&type=pdf.
- ^ Adams, Michael D. (2001-12-25). "JasPer Software Reference Manual Version 1.500.4". p. 20. http://iie.fing.edu.uy/ense/asign/codif/material/laboratorio/jpeg_2000/doc/jasper.pdf. 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
- 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). doi:10.1109/ICASSP.2004.1327092. ISBN 0-7803-8484-9. http://www.ece.uvic.ca/~frodo/publications/icassp2004.pdf.
[edit] External links
- JasPer homepage, University of Victoria
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