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Acknowledgments and Other Issues

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Acknowledgments and Other Issues

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.

Acknowledgements

The libtiff software was written by Sam Leffler while working for

Silicon Graphics.

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. Joris Van Damme

implemented the robust Old JPEG decoder (as included in libtiff since version

3.9.0, there was another Old JPEG module in older releases, which was

incomplete and unsuitable for many existing images of that format). JBIG

module was written by Lee Howard and depends on JBIG library from the Markus

Kuhn. Many other people have by now helped with bug fixes and code; a few of

the more persistent contributors have been:

    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

    Dmitry V. Levin

    Bob Friesenhahn

    Lee Howard

    Joris Van Damme

    Tavis Ormandy

    Richard Nolde

(my apology to anyone that was inadvertently not listed.)

Use and Copyright

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.

Last updated: $Date: 2007/02/24 15:47:04 $