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Andrey Kiselev
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<HTML>
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<HEAD>
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<TITLE>
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Changes in TIFF v3.6.1
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</TITLE>
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</HEAD>
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<BODY BGCOLOR=white>
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<FONT FACE="Helvetica, Arial, Sans">
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<FONT FACE="Helvetica, Arial, Sans">
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<BASEFONT SIZE=4>
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<B><FONT SIZE=+3>T</FONT>IFF <FONT SIZE=+2>C</FONT>HANGE <FONT SIZE=+2>I</FONT>NFORMATION</B>
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<BASEFONT SIZE=3>
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<UL>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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<B>Current Version</B>: v3.6.1<BR>
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<B>Previous Version</B>: <A HREF=v3.6.0.html>v3.6.0</a><BR>
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<B>Master FTP Site</B>: <A HREF="ftp://ftp.remotesensing.org/pub/libtiff">
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ftp.remotesensing.org</a>, directory pub/libtiff</A><BR>
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<B>Master HTTP Site</B>: <A HREF="http://www.remotesensing.org/libtiff">
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http://www.remotesensing.org/libtiff</a>
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<HR SIZE=4 WIDTH=65% ALIGN=left>
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</UL>
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<P>
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This document describes the changes made to the software between the
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<I>previous</I> and <I>current</I> versions (see above).
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If you don't find something listed here, then it was not done in this
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timeframe, or it was not considered important enough to be mentioned.
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The following information is located here:
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<UL>
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<LI><A HREF="#hightlights">Major Changes</A>
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<LI><A HREF="#configure">Changes in the software configuration</A>
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<LI><A HREF="#libtiff">Changes in libtiff</A>
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<LI><A HREF="#tools">Changes in the tools</A>
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<LI><A HREF="#contrib">Changes in the contrib area</A>
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<LI><A HREF="#lzwkit">Changes in the LZW compression kit</A>
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</UL>
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<p>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="highlights"><B><FONT SIZE=+3>M</FONT>AJOR CHANGES:</B></A>
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<ul>
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<li> New utility <a href="./man/tiff2pdf.1.html">tiff2pdf</a>
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for converting TIFF images directly into PDF.
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<li> New <a href="./man/TIFFcolor.3t.html">color conversion module</a>.
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<li> Full support for Orientation tag in
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<a href="./man/TIFFReadRGBAImage.3t.html">TIFFRGBAImage</a> interface.
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<li> Many bugs fixed.
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</ul>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="configure"><B><FONT SIZE=+3>C</FONT>HANGES IN THE SOFTWARE CONFIGURATION:</B></A>
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<UL>
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<li> libtiff/makefile.vc, tools/makefile.vc: Support for IJG JPEG library.
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<li> Makefile.in: Add an absolute path to the test_pics.sh call.
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<li> Makefile.in: Add an absolute path to the test_pics.sh call.
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<li> libtiff/tiffcomp.h: #define _BSDTYPES_DEFINED when defining BSD typedefs.
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<li> configure, libtiff/{Makefile.in, mkversion.c}: Relative buildings fixed.
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<li> Makefile.in: Add an absolute path to the test_pics.sh call.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="libtiff"><B><FONT SIZE=+3>C</FONT>HANGES IN LIBTIFF:</B></A>
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<UL>
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<li> libtiff/{tif_color.c, tif_getimage.c, tiffio.h}: Added support
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for ReferenceBlackWhite tag handling when converted from YCbCr color space as
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per bug 120.
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<li> libtiff/{tif_getimage.c, tif_aux.c}: Read WhitePoint tag from the
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file and properly use it for CIE Lab 1976 to RGB transform.
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<li> libtiff/{tif_getimage.c, tiffio.h}: Finally resolved problems with
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orientation handling. TIFFRGBAImage interface now properly supports all
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possible orientations, i.e. images will be flipped both in horizontal and
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vertical directions if required. 'Known bugs' section now removed from the
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appropriate manual pages.
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<li> libtiff/tif_luv.c: Fixed bug in 48-bit to 24-bit conversion routine,
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reported by Antonio Scuri.
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<li> libtiff/{tiffio.h, tif_codec.c}: Added new function
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TIFFIsCODECConfigured(), suggested by Ross Finlayson.
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<li> libtiff/tif_ojpeg.c: TIFFVGetField() function now can properly extract
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the fields from the OJPEG files. Patch supplied by Ross Finlayson.
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<li> libtiff/tif_dir.h: _TIFFFindOrRegisterdInfo declaration replaced
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with _TIFFFindOrRegisterFieldInfo as reported by Ross Finlayson.
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<li> libtiff/tif_dirinfo.c: Implemented binary search in _TIFFMergeFieldInfo().
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Patch supplied by Ross Finlayson.
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<li> tif_dirread.c: do not mark all anonymously defined tags to be IGNOREd (as
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it was done in 3.6.0).
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<li> libtiff/{tiff.h, tif_dirinfo.c}: Added support for IFD (13) datatype,
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intruduced in "Adobe PageMaker TIFF Technical Notes".
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<li> libtiff/{tif_color.c, tif_getimage.c, tiffio.h}: New color space
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conversion code: CIE L*a*b* 1976 images now supported by the TIFFRGBAImage
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interface. YCbCr to RGB conversion code also moved there and now has
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<a href="./man/TIFFcolor.3t.html">publicly available interface</a>. These
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routines currently used in TIFFRGBAImage interface only and not supported in
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other libtiff tools yet. So if you want, for example, to convert CIE Lab image
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into PostScript file you should do it in two steps: chnge colorspace to RGB
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using <a href="./man/tiff2rgba.1.html">tiff2rgba</a> utility abd then process
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it with the <a href="./man/tiff2ps.1.html">tiff2ps</a>.
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<li> libtiff/tif_tile.c: Remove spurious use of "s" (sample) in the
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planarconfig_contig case in TIFFComputeTile() as per bug 387
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<li> libtiff/tiffiop.h: New macros: TIFFmax, TIFFmin and TIFFrint.
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<li> libtiff/{tiffio.h, tif_strip.c}: Added TIFFRawStripSize() function
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as suggested by Chris Hanson.
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<li> libtiff/{tif_lzw.c, tif_fax3.c}: Proper support for update mode
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as per bug 424.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!-------------------------------------------------------------------------->
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<A NAME="tools"><B><FONT SIZE=+3>C</FONT>HANGES IN THE TOOLS:</B></A>
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<UL>
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<li> <a href=./man/tiff2pdf.1.html>tiff2pdf</a>: New tool, written by
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Ross Finlayson, to directly convert TIFF files to PDF.
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<li> <a href=./man/tiffgt.1.html>tiffgt</a>: Unmaintained and platform
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dependent sgigt utility removed and replaced with the completely rewritten
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portable <a href=./man/tiffgt.1.html>tiffgt</a> tool (depend on OpenGL and
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GLUT). This tool will not build by default.
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<li> <a href=./man/ras2tiff.1.html>ras2tiff</a>: Properly determine
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SUN Rasterfiles with the reverse byte order (it is reported by the magic
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header field). Problem reported by Andreas Wiesmann.
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<li> <a href=./man/raw2tiff.1.html>raw2tiff</a>: Implemented image size
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guessing using correlation coefficient calculation between two neighbour
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lines.
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</UL>
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<P><HR WIDTH=65% ALIGN=left>
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<!--------------------------------------------------------------------------->
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<A NAME="contrib"><B><FONT SIZE=+3>C</FONT>HANGES IN THE CONTRIB AREA:</B></A>
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<UL>
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<li> contrib/pds/{tif_pdsdirread.c, tif_pdsdirwrite.c}: Use TIFFDataWidth()
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function insted of tiffDataWidth array.
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</UL>
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<!--------------------------------------------------------------------------->
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<A NAME="lzwkit"><B><FONT SIZE=+3>C</FONT>HANGES IN THE LZW COMPRESSION
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KIT:</B></A>
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<UL>
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<li> Proper support for update mode as per bug 424.
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</UL>
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<A HREF="index.html"><IMG SRC="images/back.gif"></A> TIFF home page.<BR>
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<HR>
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Last updated $Date: 2003-12-23 10:27:53 $.
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</BODY>
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</HTML>
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