10ef31e1fSMike Welles<HTML> 20ef31e1fSMike Welles<HEAD> 30ef31e1fSMike Welles<TITLE> 40ef31e1fSMike WellesAcknowledgments and Other Issues 50ef31e1fSMike Welles</TITLE> 60ef31e1fSMike Welles</HEAD> 79d706da7SMike Welles<BODY BGCOLOR=white> 89d706da7SMike Welles<FONT FACE="Arial, Helvetica, Sans"> 90ef31e1fSMike Welles<H1> 100ef31e1fSMike Welles<IMG SRC=images/ring.gif WIDTH=124 HEIGHT=124 ALIGN=left BORDER=1 HSPACE=6> 110ef31e1fSMike WellesAcknowledgments and Other Issues 120ef31e1fSMike Welles</H1> 130ef31e1fSMike Welles 140ef31e1fSMike Welles<P> 15*6cd6feeaSFrank WarmerdamSilicon Graphics has seen fit to allow us to give this work away. It 160ef31e1fSMike Wellesis free. There is no support or guarantee of any sort as to its 170ef31e1fSMike Wellesoperations, correctness, or whatever. If you do anything useful with 18*6cd6feeaSFrank Warmerdamall or parts of it you need to honor the copyright notices. It would 19*6cd6feeaSFrank Warmerdamalso be nice to be acknowledged.<p> 200ef31e1fSMike Welles 210ef31e1fSMike Welles<BR CLEAR=left> 220ef31e1fSMike Welles 230ef31e1fSMike Welles<H2>Acknowledgements</H2> 240ef31e1fSMike Welles 25*6cd6feeaSFrank WarmerdamThe libtiff software was written by Sam Leffler while working for 26*6cd6feeaSFrank WarmerdamSilicon Graphics.<p> 27*6cd6feeaSFrank Warmerdam 280ef31e1fSMike WellesThe LZW algorithm is derived from the compress program (the proper 290ef31e1fSMike Wellesattribution is included in the source code). The Group 3 fax stuff 300ef31e1fSMike Wellesoriginated as code from Jef Poskanzer, but has since been rewritten 310ef31e1fSMike Wellesseveral times. The latest version uses an algorithm from Frank 320ef31e1fSMike WellesCringle -- consult <TT>libtiff/mkg3states.c</TT> and 330ef31e1fSMike Welles<TT>libtiff/tif_fax3.h</TT> for further information. 340ef31e1fSMike WellesThe JPEG support was written by Tom Lane and is dependent on the 350ef31e1fSMike Wellesexcellent work of Tom Lane and the Independent JPEG Group (IJG) 360ef31e1fSMike Welleswho distribute their work under friendly licensing similar to this 370ef31e1fSMike Wellessoftware. 380ef31e1fSMike WellesMany other people have by now helped with bug fixes and code; a 390ef31e1fSMike Wellesfew of the more persistent contributors have been: 400ef31e1fSMike Welles 410ef31e1fSMike Welles<PRE> 42a4079e75SFrank Warmerdam Bjorn P. Brox 43a4079e75SFrank Warmerdam Dan McCoy 44a4079e75SFrank Warmerdam J.T. Conklin 45a4079e75SFrank Warmerdam Richard Minner 46a4079e75SFrank Warmerdam Frank D. Cringle 47a4079e75SFrank Warmerdam Richard Mlynarik 48a4079e75SFrank Warmerdam Soren Pingel Dalsgaard 49a4079e75SFrank Warmerdam Niles Ritter 50a4079e75SFrank Warmerdam Steve Johnson 51a4079e75SFrank Warmerdam Karsten Spang 52a4079e75SFrank Warmerdam Tom Lane 53a4079e75SFrank Warmerdam Peter Smith 54a4079e75SFrank Warmerdam Brent Roman 55a4079e75SFrank Warmerdam Mike Welles 56a4079e75SFrank Warmerdam Frank Warmerdam 57a4079e75SFrank Warmerdam Greg Ward 58a4079e75SFrank Warmerdam Stanislav Brabec 59a4079e75SFrank Warmerdam Roman Shpount 60a4079e75SFrank Warmerdam Peter Skarpetis 61a4079e75SFrank Warmerdam Arvan Pritchard 62a4079e75SFrank Warmerdam Bernt Herd 63a4079e75SFrank Warmerdam Joseph Orost 64a4079e75SFrank Warmerdam Phil Beffery 65a4079e75SFrank Warmerdam Ivo Penzar 66a4079e75SFrank Warmerdam Francois Dagand 67a4079e75SFrank Warmerdam Albert Chin-A-Young 68a4079e75SFrank Warmerdam Bruce A. Mallett 696f849e01SFrank Warmerdam Dwight Kelly 706f849e01SFrank Warmerdam Andrey Kiselev 710ef31e1fSMike Welles</PRE> 720ef31e1fSMike Welles 730ef31e1fSMike Welles(my apology to anyone that was inadvertently not listed.) 740ef31e1fSMike Welles 750ef31e1fSMike Welles<H2>Warning</H2> 760ef31e1fSMike Welles 770ef31e1fSMike WellesIt appears that Unisys is actively pursuing copyright control on the 780ef31e1fSMike WellesLZW compression algorithm. In particular, users of the LZW compression 790ef31e1fSMike Welleswithin the TIFF framework. For this reason the TIFF 6.0 spec states 800ef31e1fSMike Wellesthat LZW compression is not recommended. It is unclear at this time 810ef31e1fSMike Welleswhat compression algorithm will be used in place of it. I have no idea 820ef31e1fSMike Welleswhat this means to you or to this library. I make no warranty or 830ef31e1fSMike Wellesguarantees with regard to the LZW support in this library. 840ef31e1fSMike Welles 850ef31e1fSMike Welles<H2>Use and Copyright</H2> 860ef31e1fSMike Welles 870ef31e1fSMike Welles<P><H5><PRE> 880ef31e1fSMike WellesCopyright (c) 1988-1997 Sam Leffler 890ef31e1fSMike WellesCopyright (c) 1991-1997 Silicon Graphics, Inc. 900ef31e1fSMike Welles 910ef31e1fSMike WellesPermission to use, copy, modify, distribute, and sell this software and 920ef31e1fSMike Wellesits documentation for any purpose is hereby granted without fee, provided 930ef31e1fSMike Wellesthat (i) the above copyright notices and this permission notice appear in 940ef31e1fSMike Wellesall copies of the software and related documentation, and (ii) the names of 950ef31e1fSMike WellesSam Leffler and Silicon Graphics may not be used in any advertising or 960ef31e1fSMike Wellespublicity relating to the software without the specific, prior written 970ef31e1fSMike Wellespermission of Sam Leffler and Silicon Graphics. 980ef31e1fSMike Welles 990ef31e1fSMike WellesTHE SOFTWARE IS PROVIDED "AS-IS" AND WITHOUT WARRANTY OF ANY KIND, 1000ef31e1fSMike WellesEXPRESS, IMPLIED OR OTHERWISE, INCLUDING WITHOUT LIMITATION, ANY 1010ef31e1fSMike WellesWARRANTY OF MERCHANTABILITY OR FITNESS FOR A PARTICULAR PURPOSE. 1020ef31e1fSMike Welles 1030ef31e1fSMike WellesIN NO EVENT SHALL SAM LEFFLER OR SILICON GRAPHICS BE LIABLE FOR 1040ef31e1fSMike WellesANY SPECIAL, INCIDENTAL, INDIRECT OR CONSEQUENTIAL DAMAGES OF ANY KIND, 1050ef31e1fSMike WellesOR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, 1060ef31e1fSMike WellesWHETHER OR NOT ADVISED OF THE POSSIBILITY OF DAMAGE, AND ON ANY THEORY OF 1070ef31e1fSMike WellesLIABILITY, ARISING OUT OF OR IN CONNECTION WITH THE USE OR PERFORMANCE 1080ef31e1fSMike WellesOF THIS SOFTWARE. 1090ef31e1fSMike Welles</PRE></H5> 1100ef31e1fSMike Welles 1110ef31e1fSMike Welles<P> 1120ef31e1fSMike Welles<HR> 1130ef31e1fSMike Welles 1140ef31e1fSMike Welles 115*6cd6feeaSFrank WarmerdamLast updated: $Date: 2003-07-25 15:13:19 $ 1160ef31e1fSMike Welles</BODY> 1170ef31e1fSMike Welles</HTML> 118
