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1 libjpeg-turbo note: This file is mostly taken from the libjpeg v8b README | 1 libjpeg-turbo note: This file contains portions of the libjpeg v6b and v8 |
2 file, and it is included only for reference. Some parts of it may not apply to | 2 README files, with additional wordsmithing by The libjpeg-turbo Project. |
3 libjpeg-turbo. Please see README-turbo.txt for information specific to the | 3 It is included only for reference, as some parts of it may not apply to |
4 turbo version. | 4 libjpeg-turbo. Please see README-turbo.txt for information specific to |
| 5 libjpeg-turbo. |
5 | 6 |
6 | 7 |
7 The Independent JPEG Group's JPEG software | 8 The Independent JPEG Group's JPEG software |
8 ========================================== | 9 ========================================== |
9 | 10 |
10 This distribution contains a release of the Independent JPEG Group's free JPEG | 11 This distribution contains a release of the Independent JPEG Group's free JPEG |
11 software. You are welcome to redistribute this software and to use it for any | 12 software. You are welcome to redistribute this software and to use it for any |
12 purpose, subject to the conditions under LEGAL ISSUES, below. | 13 purpose, subject to the conditions under LEGAL ISSUES, below. |
13 | 14 |
14 This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone, | 15 This software is the work of Tom Lane, Guido Vollbeding, Philip Gladstone, |
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249 Although IJG's own code does not support TIFF/JPEG, the free libtiff library | 250 Although IJG's own code does not support TIFF/JPEG, the free libtiff library |
250 uses our library to implement TIFF/JPEG per the Note. | 251 uses our library to implement TIFF/JPEG per the Note. |
251 | 252 |
252 | 253 |
253 ARCHIVE LOCATIONS | 254 ARCHIVE LOCATIONS |
254 ================= | 255 ================= |
255 | 256 |
256 The "official" archive site for this software is www.ijg.org. | 257 The "official" archive site for this software is www.ijg.org. |
257 The most recent released version can always be found there in | 258 The most recent released version can always be found there in |
258 directory "files". This particular version will be archived as | 259 directory "files". This particular version will be archived as |
259 http://www.ijg.org/files/jpegsrc.v8b.tar.gz, and in Windows-compatible | 260 http://www.ijg.org/files/jpegsrc.v8d.tar.gz, and in Windows-compatible |
260 "zip" archive format as http://www.ijg.org/files/jpegsr8b.zip. | 261 "zip" archive format as http://www.ijg.org/files/jpegsr8d.zip. |
261 | 262 |
262 The JPEG FAQ (Frequently Asked Questions) article is a source of some | 263 The JPEG FAQ (Frequently Asked Questions) article is a source of some |
263 general information about JPEG. | 264 general information about JPEG. |
264 It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/ | 265 It is available on the World Wide Web at http://www.faqs.org/faqs/jpeg-faq/ |
265 and other news.answers archive sites, including the official news.answers | 266 and other news.answers archive sites, including the official news.answers |
266 archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. | 267 archive at rtfm.mit.edu: ftp://rtfm.mit.edu/pub/usenet/news.answers/jpeg-faq/. |
267 If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu | 268 If you don't have Web or FTP access, send e-mail to mail-server@rtfm.mit.edu |
268 with body | 269 with body |
269 send usenet/news.answers/jpeg-faq/part1 | 270 send usenet/news.answers/jpeg-faq/part1 |
270 send usenet/news.answers/jpeg-faq/part2 | 271 send usenet/news.answers/jpeg-faq/part2 |
271 | 272 |
272 | 273 |
273 FILE FORMAT WARS | 274 FILE FORMAT WARS |
274 ================ | 275 ================ |
275 | 276 |
276 The ISO JPEG standards committee actually promotes different formats like | 277 The ISO JPEG standards committee actually promotes different formats like |
277 "JPEG 2000" or "JPEG XR", which are incompatible with original DCT-based | 278 "JPEG 2000" or "JPEG XR", which are incompatible with original DCT-based |
278 JPEG. IJG therefore does not support these formats (see REFERENCES). Indeed, | 279 JPEG. IJG therefore does not support these formats (see REFERENCES). Indeed, |
279 one of the original reasons for developing this free software was to help | 280 one of the original reasons for developing this free software was to help |
280 force convergence on common, interoperable format standards for JPEG files. | 281 force convergence on common, interoperable format standards for JPEG files. |
281 Don't use an incompatible file format! | 282 Don't use an incompatible file format! |
282 (In any case, our decoder will remain capable of reading existing JPEG | 283 (In any case, our decoder will remain capable of reading existing JPEG |
283 image files indefinitely.) | 284 image files indefinitely.) |
284 | 285 |
285 | 286 |
286 TO DO | 287 TO DO |
287 ===== | 288 ===== |
288 | 289 |
289 Please send bug reports, offers of help, etc. to jpeg-info@uc.ag. | 290 Please send bug reports, offers of help, etc. to jpeg-info@jpegclub.org. |
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