mirror of
https://gitlab.com/libtiff/libtiff.git
synced 2026-10-24 19:59:18 +03:00
901d6d6f2f
Note: VERSION is 3.4 and original release archive is named tiff-v3.4-tar.gz but the actual content of the archive has the changes for v3.4beta033 and the changes fit into the sequence between v3.4beta032 and v3.4beta034.
107 lines
3.7 KiB
HTML
107 lines
3.7 KiB
HTML
<HTML>
|
|
<HEAD>
|
|
<TITLE>
|
|
Acknowledgments and Other Issues
|
|
</TITLE>
|
|
</HEAD>
|
|
|
|
<H1>
|
|
<IMG SRC=images/ring.gif WIDTH=124 HEIGHT=124 ALIGN=left BORDER=1 HSPACE=6>
|
|
Acknowledgments and Other Issues
|
|
</H1>
|
|
|
|
<H5>
|
|
This documentation is best viewed using a graphical browser that supports
|
|
the latest HTML directives for formatting documents. In particular,
|
|
this document was authored
|
|
for viewing with version 1.1 or newer of the
|
|
<A HREF="http://home.mcom.com/comprod/products/navigator/index.html">Netscape Navigator</A>.
|
|
</H5>
|
|
|
|
<BR CLEAR=left>
|
|
|
|
<PRE>
|
|
|
|
</PRE>
|
|
|
|
|
|
<H2>Acknowledgements</H2>
|
|
|
|
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
|
|
</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>
|
|
|
|
Silicon Graphics has seen fit to allow me 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. I would
|
|
also be interested in knowing about it and, hopefully, be acknowledged.
|
|
|
|
<P><H5><PRE>
|
|
Copyright (c) 1988-1996 Sam Leffler
|
|
Copyright (c) 1991-1996 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>
|
|
|
|
<ADDRESS>
|
|
<A HREF="sam.html">Sam Leffler</A> / <A HREF="mailto:sam@engr.sgi.com">sam@engr.sgi.com</A>.
|
|
Last updated: $Date: 1996/04/29 19:31:11 $
|
|
</ADDRESS>
|
|
|
|
</BODY>
|
|
</HTML>
|