11The Independent JPEG Group's JPEG software
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33
4- README for release 7 of 27-Jun-2009
4+ README for release 8 of 10-Jan-2010
55===================================
66
7- This distribution contains the seventh public release of the Independent JPEG
7+ This distribution contains the eighth public release of the Independent JPEG
88Group's free JPEG software. You are welcome to redistribute this software and
99to use it for any purpose, subject to the conditions under LEGAL ISSUES, below.
1010
@@ -114,7 +114,7 @@ with respect to this software, its quality, accuracy, merchantability, or
114114fitness for a particular purpose. This software is provided "AS IS", and you,
115115its user, assume the entire risk as to its quality and accuracy.
116116
117- This software is copyright (C) 1991-2009 , Thomas G. Lane, Guido Vollbeding.
117+ This software is copyright (C) 1991-2010 , Thomas G. Lane, Guido Vollbeding.
118118All Rights Reserved except as specified below.
119119
120120Permission 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
22122110918-1, ITU-T T.81. Part 2 is titled "Digital Compression and Coding of
222222Continuous-tone Still Images, Part 2: Compliance testing" and has document
223223numbers ISO/IEC IS 10918-2, ITU-T T.83.
224+ IJG JPEG 8 introduces an implementation of the JPEG SmartScale extension
225+ which is specified in a contributed document at ITU and ISO with title "ITU-T
226+ JPEG-Plus Proposal for Extending ITU-T T.81 for Advanced Image Coding", April
227+ 2006, Geneva, Switzerland. The latest version of the document is Revision 3.
224228
225229The JPEG standard does not specify all details of an interchangeable file
226230format. For the omitted details we follow the "JFIF" conventions, revision
227- 1.02. A copy of the JFIF spec is available from:
228- Literature Department
229- C-Cube Microsystems, Inc.
230- 1778 McCarthy Blvd.
231- Milpitas, CA 95035
232- phone (408) 944-6300, fax (408) 944-6314
233- A PostScript version of this document is available at
231+ 1.02. JFIF 1.02 has been adopted as an Ecma International Technical Report
232+ and thus received a formal publication status. It is available as a free
233+ download in PDF format from
234+ http://www.ecma-international.org/publications/techreports/E-TR-098.htm.
235+ A PostScript version of the JFIF document is available at
234236http://www.ijg.org/files/jfif.ps.gz. There is also a plain text version at
235237http://www.ijg.org/files/jfif.txt.gz, but it is missing the figures.
236238
@@ -252,8 +254,8 @@ ARCHIVE LOCATIONS
252254The "official" archive site for this software is www.ijg.org.
253255The most recent released version can always be found there in
254256directory "files". This particular version will be archived as
255- http://www.ijg.org/files/jpegsrc.v7 .tar.gz, and in Windows-compatible
256- "zip" archive format as http://www.ijg.org/files/jpegsr7 .zip.
257+ http://www.ijg.org/files/jpegsrc.v8 .tar.gz, and in Windows-compatible
258+ "zip" archive format as http://www.ijg.org/files/jpegsr8 .zip.
257259
258260The JPEG FAQ (Frequently Asked Questions) article is a source of some
259261general information about JPEG.
@@ -269,9 +271,8 @@ with body
269271ACKNOWLEDGMENTS
270272===============
271273
272- Thank to Juergen Bruder of the Georg-Cantor-Organization at the
273- Martin-Luther-University Halle for providing me with a copy of the common
274- DCT algorithm article, only to find out that I had come to the same result
274+ Thank to Juergen Bruder for providing me with a copy of the common DCT
275+ algorithm article, only to find out that I had come to the same result
275276in a more direct and comprehensible way with a more generative approach.
276277
277278Thank 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.
283284Thank to John Korejwa and Massimo Ballerini for inviting me to
284285fruitful consultations in Boston, MA and Milan, Italy.
285286
286- Thank to Hendrik Elstner, Roland Fassauer, and Simone Zuck for
287- corresponding business development.
287+ Thank to Hendrik Elstner, Roland Fassauer, Simone Zuck, Guenther
288+ Maier-Gerber, and Walter Stoeber for corresponding business development.
288289
289290Thank to Nico Zschach and Dirk Stelling of the technical support team
290291at the Digital Images company in Halle for providing me with extra
@@ -293,6 +294,8 @@ equipment for configuration tests.
293294Thank to Richard F. Lyon (then of Foveon Inc.) for fruitful
294295communication about JPEG configuration in Sigma Photo Pro software.
295296
297+ Thank to Andrew Finkenstadt for hosting the ijg.org site.
298+
296299Last but not least special thank to Thomas G. Lane for the original
297300design and development of this singular software package.
298301
@@ -301,9 +304,9 @@ FILE FORMAT WARS
301304================
302305
303306The ISO JPEG standards committee actually promotes different formats like
304- JPEG- 2000 or JPEG-XR which are incompatible with original DCT-based JPEG
305- and which are based on faulty technologies. IJG therefore does not and
306- will not support such momentary mistakes (see REFERENCES).
307+ " JPEG 2000" or " JPEG XR" which are incompatible with original DCT-based
308+ JPEG and which are based on faulty technologies. IJG therefore does not
309+ and will not support such momentary mistakes (see REFERENCES).
307310We have little or no sympathy for the promotion of these formats. Indeed,
308311one of the original reasons for developing this free software was to help
309312force convergence on common, interoperable format standards for JPEG files.
@@ -315,8 +318,8 @@ image files indefinitely.)
315318TO DO
316319=====
317320
318- v7 is basically just a necessary interim release, paving the way for a
319- major breakthrough in image coding technology with the next v8 package
320- which is scheduled for release in the year 2010 .
321+ Version 8.0 is the first release of a new generation JPEG standard
322+ to overcome the limitations of the original JPEG specification.
323+ More features are being prepared for coming releases.. .
321324
322- Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org .
325+ Please send bug reports, offers of help, etc. to jpeg-info@uc.ag .
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