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The Independent JPEG Group's JPEG software
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==========================================
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- README for release 7 of 27-Jun-2009
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+ README for release 8 of 10-Jan-2010
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===================================
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- This distribution contains the seventh public release of the Independent JPEG
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+ This distribution contains the eighth public release of the Independent JPEG
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Group's free JPEG software. You are welcome to redistribute this software and
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to use it for any purpose, subject to the conditions under LEGAL ISSUES, below.
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@@ -114,7 +114,7 @@ with respect to this software, its quality, accuracy, merchantability, or
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fitness for a particular purpose. This software is provided "AS IS", and you,
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its user, assume the entire risk as to its quality and accuracy.
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- This software is copyright (C) 1991-2009 , Thomas G. Lane, Guido Vollbeding.
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+ This software is copyright (C) 1991-2010 , Thomas G. Lane, Guido Vollbeding.
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All Rights Reserved except as specified below.
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Permission is hereby granted to use, copy, modify, and distribute this
@@ -221,16 +221,18 @@ Part 1: Requirements and guidelines" and has document numbers ISO/IEC IS
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10918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of
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Continuous-tone Still Images, Part 2: Compliance testing" and has document
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numbers ISO/IEC IS 10918-2, ITU-T T.83.
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+ IJG JPEG 8 introduces an implementation of the JPEG SmartScale extension
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+ which is specified in a contributed document at ITU and ISO with title "ITU-T
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+ JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced Image Coding", April
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+ 2006, Geneva, Switzerland. The latest version of the document is Revision 3.
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The JPEG standard does not specify all details of an interchangeable file
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format. For the omitted details we follow the "JFIF" conventions, revision
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- 1.02. A copy of the JFIF spec is available from:
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- Literature Department
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- C-Cube Microsystems, Inc.
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- 1778 McCarthy Blvd.
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- Milpitas, CA 95035
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- phone (408) 944-6300, fax (408) 944-6314
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- A PostScript version of this document is available at
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+ 1.02. JFIF 1.02 has been adopted as an Ecma International Technical Report
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+ and thus received a formal publication status. It is available as a free
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+ download in PDF format from
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+ http://www.ecma-international.org/publications/techreports/E-TR-098.htm.
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+ A PostScript version of the JFIF document is available at
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http://www.ijg.org/files/jfif.ps.gz. There is also a plain text version at
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http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures.
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@@ -252,8 +254,8 @@ ARCHIVE LOCATIONS
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The "official" archive site for this software is www.ijg.org.
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The most recent released version can always be found there in
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directory "files". This particular version will be archived as
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- http://www.ijg.org/files/jpegsrc.v7 .tar.gz, and in Windows-compatible
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- "zip" archive format as http://www.ijg.org/files/jpegsr7 .zip.
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+ http://www.ijg.org/files/jpegsrc.v8 .tar.gz, and in Windows-compatible
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+ "zip" archive format as http://www.ijg.org/files/jpegsr8 .zip.
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The JPEG FAQ (Frequently Asked Questions) article is a source of some
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general information about JPEG.
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ACKNOWLEDGMENTS
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===============
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- Thank to Juergen Bruder of the Georg-Cantor-Organization at the
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- Martin-Luther-University Halle for providing me with a copy of the common
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- DCT algorithm article, only to find out that I had come to the same result
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+ Thank to Juergen Bruder for providing me with a copy of the common DCT
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+ algorithm article, only to find out that I had come to the same result
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in a more direct and comprehensible way with a more generative approach.
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Thank to Istvan Sebestyen and Joan L. Mitchell for inviting me to the
@@ -283,8 +284,8 @@ Joint Video Team (MPEG & ITU) meeting in Geneva, Switzerland.
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Thank to John Korejwa and Massimo Ballerini for inviting me to
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fruitful consultations in Boston, MA and Milan, Italy.
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- Thank to Hendrik Elstner, Roland Fassauer, and Simone Zuck for
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- corresponding business development.
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+ Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther
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+ Maier-Gerber, and Walter Stoeber for corresponding business development.
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Thank to Nico Zschach and Dirk Stelling of the technical support team
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at the Digital Images company in Halle for providing me with extra
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Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful
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communication about JPEG configuration in Sigma Photo Pro software.
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+ Thank to Andrew Finkenstadt for hosting the ijg.org site.
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+
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Last but not least special thank to Thomas G. Lane for the original
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design and development of this singular software package.
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@@ -301,9 +304,9 @@ FILE FORMAT WARS
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================
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The ISO JPEG standards committee actually promotes different formats like
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- JPEG- 2000 or JPEG-XR which are incompatible with original DCT-based JPEG
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- and which are based on faulty technologies. IJG therefore does not and
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- will not support such momentary mistakes (see REFERENCES).
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+ " JPEG 2000" or " JPEG XR" which are incompatible with original DCT-based
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+ JPEG and which are based on faulty technologies. IJG therefore does not
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+ and will not support such momentary mistakes (see REFERENCES).
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We have little or no sympathy for the promotion of these formats. Indeed,
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one of the original reasons for developing this free software was to help
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force convergence on common, interoperable format standards for JPEG files.
@@ -315,8 +318,8 @@ image files indefinitely.)
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TO DO
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=====
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- v7 is basically just a necessary interim release, paving the way for a
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- major breakthrough in image coding technology with the next v8 package
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- which is scheduled for release in the year 2010 .
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+ Version 8.0 is the first release of a new generation JPEG standard
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+ to overcome the limitations of the original JPEG specification.
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+ More features are being prepared for coming releases.. .
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- Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org .
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+ Please send bug reports, offers of help, etc. to jpeg-info@uc.ag .
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