Платформа ЦРНП "Мирокод" для разработки проектов
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86 lines
4.1 KiB
86 lines
4.1 KiB
Independent JPEG Group License LEGAL ISSUES |
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In plain English: |
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1. We don't promise that this software works. (But if you find any bugs, please |
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let us know!) |
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2. You can use this software for whatever you want. You don't have to pay |
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us. |
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3. You may not pretend that you wrote this software. If you use it in a program, |
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you must acknowledge somewhere in your documentation that you've used the |
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IJG code. |
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In legalese: |
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The authors make NO WARRANTY or representation, either express or implied, |
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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) 1991-1998, Thomas G. Lane. All Rights Reserved |
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except as specified below. |
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Permission is hereby granted to use, copy, modify, and distribute this software |
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(or portions thereof) for any purpose, without fee, subject to these conditions: |
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(1) If any part of the source code for this software is distributed, then |
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this README file must be included, with this copyright and no-warranty notice |
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unaltered; and any additions, deletions, or changes to the original files |
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must be clearly indicated in accompanying documentation. |
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(2) If only executable code is distributed, then the accompanying documentation |
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must state that "this software is based in part on the work of the Independent |
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JPEG Group". |
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(3) Permission for use of this software is granted only if the user accepts |
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full responsibility for any undesirable consequences; the authors accept NO |
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LIABILITY for damages of any kind. |
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These conditions apply to any software derived from or based on the IJG code, |
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not just to the unmodified library. If you use our work, you ought to acknowledge |
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us. |
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Permission is NOT granted for the use of any IJG author's name or company |
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name in advertising or publicity relating to this software or products derived |
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from it. This software may be referred to only as "the Independent JPEG Group's |
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software". |
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We specifically permit and encourage the use of this software as the basis |
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of commercial products, provided that all warranty or liability claims are |
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assumed by the product vendor. |
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ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, |
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sole proprietor of its copyright holder, Aladdin Enterprises of Menlo Park, |
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CA. ansi2knr.c is NOT covered by the above copyright and conditions, but instead |
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by the usual distribution terms of the Free Software Foundation; principally, |
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that you must include source code if you redistribute it. (See the file ansi2knr.c |
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for full details.) However, since ansi2knr.c is not needed as part of any |
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program generated from the IJG code, this does not limit you more than the |
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foregoing paragraphs do. |
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The Unix configuration script "configure" was produced with GNU Autoconf. |
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It is copyright by the Free Software Foundation but is freely distributable. |
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The same holds for its supporting scripts (config.guess, config.sub, ltconfig, |
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ltmain.sh). Another support script, install-sh, is copyright by M.I.T. but |
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is also freely distributable. |
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It appears that the arithmetic coding option of the JPEG spec is covered by |
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patents owned by IBM, AT&T, and Mitsubishi. Hence arithmetic coding cannot |
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legally be used without obtaining one or more licenses. For this reason, support |
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for arithmetic coding has been removed from the free JPEG software. (Since |
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arithmetic coding provides only a marginal gain over the unpatented Huffman |
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mode, it is unlikely that very many implementations will support it.) So far |
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as we are aware, there are no patent restrictions on the remaining code. |
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The IJG distribution formerly included code to read and write GIF files. To |
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avoid entanglement with the Unisys LZW patent, GIF reading support has been |
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removed altogether, and the GIF writer has been simplified to produce "uncompressed |
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GIFs". This technique does not use the LZW algorithm; the resulting GIF files |
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are larger than usual, but are readable by all standard GIF decoders. |
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We are required to state that |
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"The Graphics Interchange Format(c) is the Copyright property of CompuServe |
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Incorporated. GIF(sm) is a Service Mark property of CompuServe Incorporated."
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