119 lines
3.8 KiB
HTML
119 lines
3.8 KiB
HTML
<HTML>
|
|
<HEAD>
|
|
<TITLE>
|
|
Acknowledgments and Other Issues
|
|
</TITLE>
|
|
</HEAD>
|
|
<BODY BGCOLOR=white>
|
|
<FONT FACE="Arial, Helvetica, Sans">
|
|
<H1>
|
|
<IMG SRC=images/ring.gif WIDTH=124 HEIGHT=124 ALIGN=left BORDER=1 HSPACE=6>
|
|
Acknowledgments and Other Issues
|
|
</H1>
|
|
|
|
<P>
|
|
Silicon Graphics has seen fit to allow us to give this work away. It
|
|
is free. There is no support or guarantee of any sort as to its
|
|
operations, correctness, or whatever. If you do anything useful with
|
|
all or parts of it you need to honor the copyright notices. It would
|
|
also be nice to be acknowledged.<p>
|
|
|
|
<BR CLEAR=left>
|
|
|
|
<H2>Acknowledgements</H2>
|
|
|
|
The libtiff software was written by Sam Leffler while working for
|
|
Silicon Graphics.<p>
|
|
|
|
The LZW algorithm is derived from the compress program (the proper
|
|
attribution is included in the source code). The Group 3 fax stuff
|
|
originated as code from Jef Poskanzer, but has since been rewritten
|
|
several times. The latest version uses an algorithm from Frank
|
|
Cringle -- consult <TT>libtiff/mkg3states.c</TT> and
|
|
<TT>libtiff/tif_fax3.h</TT> for further information.
|
|
The JPEG support was written by Tom Lane and is dependent on the
|
|
excellent work of Tom Lane and the Independent JPEG Group (IJG)
|
|
who distribute their work under friendly licensing similar to this
|
|
software.
|
|
Many other people have by now helped with bug fixes and code; a
|
|
few of the more persistent contributors have been:
|
|
|
|
<PRE>
|
|
Bjorn P. Brox
|
|
Dan McCoy
|
|
J.T. Conklin
|
|
Richard Minner
|
|
Frank D. Cringle
|
|
Richard Mlynarik
|
|
Soren Pingel Dalsgaard
|
|
Niles Ritter
|
|
Steve Johnson
|
|
Karsten Spang
|
|
Tom Lane
|
|
Peter Smith
|
|
Brent Roman
|
|
Mike Welles
|
|
Frank Warmerdam
|
|
Greg Ward
|
|
Stanislav Brabec
|
|
Roman Shpount
|
|
Peter Skarpetis
|
|
Arvan Pritchard
|
|
Bernt Herd
|
|
Joseph Orost
|
|
Phil Beffery
|
|
Ivo Penzar
|
|
Francois Dagand
|
|
Albert Chin-A-Young
|
|
Bruce A. Mallett
|
|
Dwight Kelly
|
|
Andrey Kiselev
|
|
Ross Finlayson
|
|
</PRE>
|
|
|
|
(my apology to anyone that was inadvertently not listed.)
|
|
|
|
<H2>Warning</H2>
|
|
|
|
It appears that Unisys is actively pursuing copyright control on the
|
|
LZW compression algorithm. In particular, users of the LZW compression
|
|
within the TIFF framework. For this reason the TIFF 6.0 spec states
|
|
that LZW compression is not recommended. It is unclear at this time
|
|
what compression algorithm will be used in place of it. I have no idea
|
|
what this means to you or to this library. I make no warranty or
|
|
guarantees with regard to the LZW support in this library.
|
|
|
|
<H2>Use and Copyright</H2>
|
|
|
|
<P><H5><PRE>
|
|
Copyright (c) 1988-1997 Sam Leffler
|
|
Copyright (c) 1991-1997 Silicon Graphics, Inc.
|
|
|
|
Permission to use, copy, modify, distribute, and sell this software and
|
|
its documentation for any purpose is hereby granted without fee, provided
|
|
that (i) the above copyright notices and this permission notice appear in
|
|
all copies of the software and related documentation, and (ii) the names of
|
|
Sam Leffler and Silicon Graphics may not be used in any advertising or
|
|
publicity relating to the software without the specific, prior written
|
|
permission of Sam Leffler and Silicon Graphics.
|
|
|
|
THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
|
|
EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
|
|
WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
|
|
|
|
IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
|
|
ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
|
|
OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
|
|
WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
|
|
LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
|
|
OF THIS SOFTWARE.
|
|
</PRE></H5>
|
|
|
|
<P>
|
|
<HR>
|
|
|
|
|
|
Last updated: $Date: 2003-12-23 10:28:17 $
|
|
</BODY>
|
|
</HTML>
|