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| 2 | <HEAD>
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| 3 | <TITLE>
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| 4 | Acknowledgments and Other Issues
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| 5 | </TITLE>
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| 6 | </HEAD>
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| 7 | <BODY BGCOLOR=white>
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| 8 | <FONT FACE="Arial, Helvetica, Sans">
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| 9 | <H1>
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| 10 | <IMG SRC=images/ring.gif WIDTH=124 HEIGHT=124 ALIGN=left BORDER=1 HSPACE=6>
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| 11 | Acknowledgments and Other Issues
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| 12 | </H1>
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| 13 |
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| 14 | <P>
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| 15 | Silicon Graphics has seen fit to allow us to give this work away. It
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| 16 | is free. There is no support or guarantee of any sort as to its
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| 17 | operations, correctness, or whatever. If you do anything useful with
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| 18 | all or parts of it you need to honor the copyright notices. It would
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| 19 | also be nice to be acknowledged.<p>
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| 20 |
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| 21 | <BR CLEAR=left>
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| 22 |
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| 23 | <H2>Acknowledgements</H2>
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| 24 |
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| 25 | The libtiff software was written by Sam Leffler while working for
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| 26 | Silicon Graphics.<p>
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| 27 |
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| 28 | The LZW algorithm is derived from the compress program (the proper attribution
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| 29 | is included in the source code). The Group 3 fax stuff originated as code
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| 30 | from Jef Poskanzer, but has since been rewritten several times. The latest
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| 31 | version uses an algorithm from Frank Cringle -- consult
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| 32 | <TT>libtiff/mkg3states.c</TT> and <TT>libtiff/tif_fax3.h</TT> for further
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| 33 | information. The JPEG support was written by Tom Lane and is dependent on the
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| 34 | excellent work of Tom Lane and the Independent JPEG Group (IJG) who distribute
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| 35 | their work under friendly licensing similar to this software. Joris Van Damme
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| 36 | implemented the robust Old JPEG decoder (as included in libtiff since version
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| 37 | 3.9.0, there was another Old JPEG module in older releases, which was
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| 38 | incomplete and unsuitable for many existing images of that format). JBIG
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| 39 | module was written by Lee Howard and depends on JBIG library from the Markus
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| 40 | Kuhn. Many other people have by now helped with bug fixes and code; a few of
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| 41 | the more persistent contributors have been:
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| 42 |
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| 43 | <PRE>
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| 44 | Bjorn P. Brox
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| 45 | Dan McCoy
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| 46 | J.T. Conklin
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| 47 | Richard Minner
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| 48 | Frank D. Cringle
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| 49 | Richard Mlynarik
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| 50 | Soren Pingel Dalsgaard
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| 51 | Niles Ritter
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| 52 | Steve Johnson
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| 53 | Karsten Spang
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| 54 | Tom Lane
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| 55 | Peter Smith
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| 56 | Brent Roman
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| 57 | Mike Welles
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| 58 | Frank Warmerdam
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| 59 | Greg Ward
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| 60 | Stanislav Brabec
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| 61 | Roman Shpount
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| 62 | Peter Skarpetis
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| 63 | Arvan Pritchard
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| 64 | Bernt Herd
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| 65 | Joseph Orost
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| 66 | Phil Beffery
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| 67 | Ivo Penzar
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| 68 | Francois Dagand
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| 69 | Albert Chin-A-Young
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| 70 | Bruce A. Mallett
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| 71 | Dwight Kelly
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| 72 | Andrey Kiselev
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| 73 | Ross Finlayson
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| 74 | Dmitry V. Levin
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| 75 | Bob Friesenhahn
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| 76 | Lee Howard
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| 77 | Joris Van Damme
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| 78 | Tavis Ormandy
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| 79 | Richard Nolde
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| 80 | </PRE>
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| 81 |
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| 82 | (my apology to anyone that was inadvertently not listed.)
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| 83 |
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| 84 | <H2>Use and Copyright</H2>
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| 85 |
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| 86 | <P><H5><PRE>
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| 87 | Copyright (c) 1988-1997 Sam Leffler
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| 88 | Copyright (c) 1991-1997 Silicon Graphics, Inc.
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| 89 |
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| 90 | Permission to use, copy, modify, distribute, and sell this software and
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| 91 | its documentation for any purpose is hereby granted without fee, provided
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| 92 | that (i) the above copyright notices and this permission notice appear in
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| 93 | all copies of the software and related documentation, and (ii) the names of
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| 94 | Sam Leffler and Silicon Graphics may not be used in any advertising or
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| 95 | publicity relating to the software without the specific, prior written
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| 96 | permission of Sam Leffler and Silicon Graphics.
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| 97 |
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| 98 | THE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND,
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| 99 | EXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY
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| 100 | WARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE.
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| 101 |
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| 102 | IN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR
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| 103 | ANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND,
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| 104 | OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS,
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| 105 | WHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF
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| 106 | LIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE
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| 107 | OF THIS SOFTWARE.
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| 108 | </PRE></H5>
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| 109 |
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| 110 | <P>
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| 111 | <HR>
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| 112 |
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| 113 |
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| 114 | Last updated: $Date: 2007/02/24 15:47:04 $
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| 115 | </BODY>
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| 116 | </HTML>
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