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- The Independent JPEG Group's JPEG software
- ==========================================
-
- This distribution contains MS-DOS executable copies of version 3 of the
- Independent JPEG Group's free JPEG software. You are welcome to redistribute
- this software and to use it for any purpose, subject to the conditions under
- LEGAL ISSUES, below.
-
- This software should run on any MS-DOS machine with DOS version 3 or later,
- although we have not tested it with anything older than DOS 4.01. A minimum
- of 450Kb of free memory is recommended. Extended or expanded memory is
- helpful; the more the better!
-
- For usage instructions, see the file USAGE.
-
- Please report any problems with this software to jpeg-info@uunet.uu.net.
-
-
- ABOUT JPEG FILE FORMATS
- =======================
-
- CAUTION: Handmade Software's shareware PC program GIF2JPG produces files that
- are totally incompatible with our programs (and everyone else's too). They
- use a proprietary format that is an amalgam of GIF and JPEG representations.
- However, you can force GIF2JPG to produce compatible files with its -j switch,
- and their decompression program JPG2GIF can read our files (at least ones
- produced with our default option settings).
-
- The file format we have adopted is called JFIF. This format has been agreed
- to by a number of major commercial JPEG vendors, and we expect that it will
- become the de facto standard. JFIF is a minimal representation; work is also
- going forward to incorporate JPEG compression into the TIFF standard, for use
- in "high end" applications that need to record a lot of additional data about
- an image. We intend to support JPEG-in-TIFF in the future. We hope that
- these two formats will be sufficient and that other, incompatible JPEG file
- formats will not proliferate.
-
- Indeed, part of the reason for developing and releasing this free software is
- to help force rapid convergence to de facto standards for JPEG file formats.
- SUPPORT STANDARD, NON-PROPRIETARY FORMATS: demand JFIF or JPEG-in-TIFF!
-
-
- LEGAL ISSUES
- ============
-
- The authors make NO WARRANTY or representation, either express or implied,
- with respect to this software, its quality, accuracy, merchantability, or
- fitness for a particular purpose. This software is provided "AS IS", and you,
- its user, assume the entire risk as to its quality and accuracy.
-
- This software is copyright (C) 1991, 1992, Thomas G. Lane.
- All Rights Reserved except as specified below.
-
- Permission is hereby granted to use, copy, modify, and distribute this
- software (or portions thereof) for any purpose, without fee, subject to these
- conditions:
- (1) If any part of the source code for this software is distributed, then this
- README file must be included, with this copyright and no-warranty notice
- unaltered; and any additions, deletions, or changes to the original files
- must be clearly indicated in accompanying documentation.
- (2) If only executable code is distributed, then the accompanying
- documentation must state that "this software is based in part on the work of
- the Independent JPEG Group".
- (3) Permission for use of this software is granted only if the user accepts
- full responsibility for any undesirable consequences; the authors accept
- NO LIABILITY for damages of any kind.
-
- Permission is NOT granted for the use of any author's name or author's company
- name in advertising or publicity relating to this software or products derived
- from it. This software may be referred to only as "the Independent JPEG
- Group's software".
-
- We specifically permit and encourage the use of this software as the basis of
- commercial products, provided that all warranty or liability claims are
- assumed by the product vendor.
-
-
- We are required to state that
- "The Graphics Interchange Format(c) is the Copyright property of
- CompuServe Incorporated. GIF(sm) is a Service Mark property of
- CompuServe Incorporated."
-
-
- SOURCE CODE
- ===========
-
- The source code from which this software was generated is freely available.
- The "official" archive site for the source code is ftp.uu.net (Internet
- address 137.39.1.9 or 192.48.96.9). The most recent released version can
- always be found there in directory graphics/jpeg. This particular version is
- jpegsrc.v3.tar.Z. If you are on the Internet, you can retrieve files from
- UUNET by anonymous FTP. If you don't have FTP access, UUNET's archives are
- also available via UUCP; contact postmaster@uunet.uu.net for information on
- retrieving files that way.
-
- You can also obtain the source code from CompuServe, in the GRAPHSUPPORT forum
- (GO PICS), library 10; this version is in file jpsrc3.zip.
-
- You are welcome to use the source code in other JPEG-related programs.
- The conditions for doing so may be found in LEGAL ISSUES, above.
-
- The executables in this package were compiled directly from the distributed
- sources, using Borland C++ version 3.0. The user interface files, jcmain.c
- and jdmain.c, have been modified to provide more DOS-friendly behavior.
- The DOS versions are included in this package, in case you'd like to modify
- them further. (You'll need to get the remaining 900K of source code before
- you can do much, though.)