These conditions apply to any software derived from or based on the IJG code, not just to the unmodified library. If
you use our work, you ought to acknowledge us.
Permission is NOT granted for the use of any IJG author's name or 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.
ansi2knr.c is included in this distribution by permission of L. Peter Deutsch, sole proprietor of its copyright holder,
Aladdin Enterprises of Menlo Park, CA. ansi2knr.c is NOT covered by the above copyright and conditions, but in-
stead by the usual distribution terms of the Free Software Foundation; principally, that you must include source code
if you redistribute it. (See the file ansi2knr.c for full details.) However, since ansi2knr.c is not needed as part of any
program generated from the IJG code, this does not limit you more than the foregoing paragraphs do.
The Unix configuration script "configure" was produced with GNU Autoconf. It is copyright by the Free Software Foun-
dation but is freely distributable. The same holds for its supporting scripts (config.guess, config.sub, ltconfig, lt-
main.sh). Another support script, install-sh, is copyright by M.I.T. but is also freely distributable.
It appears that the arithmetic coding option of the JPEG spec is covered by patents owned by IBM, AT&T, and Mit-
subishi. Hence arithmetic coding cannot legally be used without obtaining one or more licenses. For this reason,
support for arithmetic coding has been removed from the free JPEG software. (Since arithmetic coding provides
only a marginal gain over the unpatented Huffman mode, it is unlikely that very many implementations will support
it.) So far as we are aware, there are no patent restrictions on the remaining code.
The IJG distribution formerly included code to read and write GIF files. To avoid entanglement with the Unisys LZW
patent, GIF reading support has been removed altogether, and the GIF writer has been simplified to produce "un-
compressed GIFs". This technique does not use the LZW algorithm; the resulting GIF files are larger than usual, but
are readable by all standard GIF decoders.
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."
The WIDE project
Copyright (C) 1995, 1996, 1997, 1998, 1999, 2000 and 2001 WIDE Project.
All rights reserved.
Redistribution and use in source and binary forms, with or without modification, are permitted provided that the fol-
lowing conditions are met:
1. Redistributions of source code must retain the above copyright notice, this list of conditions and the following
disclaimer.
2. Redistributions in binary form must reproduce the above copyright notice, this list of conditions and the following
disclaimer in the documentation and/or other materials provided with the distribution.
3. Neither the name of the project nor the names of its contributors may be used to endorse or promote products
derived from this software without specific prior written permission.
THIS SOFTWARE IS PROVIDED BY THE PROJECT AND CONTRIBUTORS ``AS IS'' AND ANY EXPRESS OR IM-
PLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY
AND FITNESS FOR A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE PROJECT OR CON-
TRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS
OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LI-
ABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH
DAMAGE.
