4 Acknowledgments and Other Issues
 
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  11 Acknowledgments and Other Issues
 
  15 Silicon Graphics has seen fit to allow us to give this work away.  It
 
  16 is free.  There is no support or guarantee of any sort as to its
 
  17 operations, correctness, or whatever.  If you do anything useful with
 
  18 all or parts of it you need to honor the copyright notices.  It would
 
  19 also be nice to be acknowledged.
<p> 
  23 <H2>Acknowledgements
</H2> 
  25 The libtiff software was written by Sam Leffler while working for
 
  28 The LZW algorithm is derived from the compress program (the proper attribution
 
  29 is included in the source code).  The Group 
3 fax stuff originated as code
 
  30 from Jef Poskanzer, but has since been rewritten several times.  The latest
 
  31 version uses an algorithm from Frank Cringle -- consult
 
  32 <TT>libtiff/mkg3states.c
</TT> and 
<TT>libtiff/tif_fax3.h
</TT> for further
 
  33 information. The JPEG support was written by Tom Lane and is dependent on the
 
  34 excellent work of Tom Lane and the Independent JPEG Group (IJG) who distribute
 
  35 their work under friendly licensing similar to this software. Joris Van Damme
 
  36 implemented the robust Old JPEG decoder (as included in libtiff since version
 
  37 3.9.0, there was another Old JPEG module in older releases, which was
 
  38 incomplete and unsuitable for many existing images of that format). JBIG
 
  39 module was written by Lee Howard and depends on JBIG library from the Markus
 
  40 Kuhn. Many other people have by now helped with bug fixes and code; a few of
 
  41 the more persistent contributors have been:
 
  50     Soren Pingel Dalsgaard  
 
  82 (my apology to anyone that was inadvertently not listed.)
 
  84 <H2>Use and Copyright
</H2> 
  87 Copyright (c) 
1988-
1997 Sam Leffler
 
  88 Copyright (c) 
1991-
1997 Silicon Graphics, Inc.
 
  90 Permission to use, copy, modify, distribute, and sell this software and 
 
  91 its documentation for any purpose is hereby granted without fee, provided
 
  92 that (i) the above copyright notices and this permission notice appear in
 
  93 all copies of the software and related documentation, and (ii) the names of
 
  94 Sam Leffler and Silicon Graphics may not be used in any advertising or
 
  95 publicity relating to the software without the specific, prior written
 
  96 permission of Sam Leffler and Silicon Graphics.
 
  98 THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 
 
  99 EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 
 
 100 WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.  
 
 102 IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
 
 103 ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
 
 104 OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
 
 105 WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 
 
 106 LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 
 
 114 Last updated: $Date: 
2007/
02/
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