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Polycom Telepresence m100 Help Book
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ARCHIVE LOCATIONS
The "official" archive site for this software is www.ijg.org. The most recent released version can always be found
there in directory "files". This particular version will be archived as http://www.ijg.org/files/jpegsrc.v8b.tar.gz, and in
Windows-compatible "zip" archive format as http://www.ijg.org/files/jpegsr8b.zip. The JPEG FAQ (Frequently
Asked Questions) article is a source of some general information about JPEG. It is available on the World Wide
Web at http://www.faqs.org/faqs/jpeg-faq/ and other news.answers archive sites, including the official
news.answers archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. If you don't have Web
or FTP access, send e-mail to mail-server@rtfm.mit.edu with body send usenet/news.answers/jpeg-faq/part1send
usenet/news.answers/jpeg-faq/part2
ACKNOWLEDGMENTS
Thank to Juergen Bruder for providing me with a copy of the common DCT algorithm article, only to find out that I
had come to the same result in a more direct and comprehensible way with a more generative approach. Thank to
Istvan Sebestyen and Joan L. Mitchell for inviting me to the ITU JPEG (Study Group 16) meeting in Geneva,
Switzerland. Thank to Thomas Wiegand and Gary Sullivan for inviting me to the Joint Video Team (MPEG & ITU)
meeting in Geneva, Switzerland. Thank to John Korejwa and Massimo Ballerini for inviting me to fruitful
consultations in Boston, MA and Milan, Italy. Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther
Maier-Gerber, Walter Stoeber, and Fred Schmitz for corresponding business development. Thank to Nico
Zschach and Dirk Stelling of the technical support team at the Digital Images company in Halle for providing me
with extra equipment for configuration tests. Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful
communication about JPEG configuration in Sigma Photo Pro software. Thank to Andrew Finkenstadt for hosting
the ijg.org site. Last but not least special thank to Thomas G. Lane for the original design and development of this
singular software package.
FILE FORMAT WARS
The ISO JPEG standards committee actually promotes different formats like "JPEG 2000" or "JPEG XR" which are
incompatible with original DCT-based JPEG and which are based on faulty technologies. IJG therefore does not
and will not support such momentary mistakes (see REFERENCES). We have little or no sympathy for the
promotion of these formats. Indeed, one of the original reasons for developing this free software was to help force
convergence on common, interoperable format standards for JPEG files.
Don't use an incompatible file format! (In any case, our decoder will remain capable of reading existing JPEG
image files indefinitely.)
TO DO
Version 8 is the first release of a new generation JPEG standard to overcome the limitations of the original JPEG
specification. More features are being prepared for coming releases...
Please send bug reports, offers of help, etc. to jpeg-info@uc.ag.
log4j LICENSE
Apache License
Version 2.0, January 2004
http://www.apache.org/licenses/
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