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authorQt by Nokia <qt-info@nokia.com>2011-04-27 12:05:43 +0200
committeraxis <qt-info@nokia.com>2011-04-27 12:05:43 +0200
commit38be0d13830efd2d98281c645c3a60afe05ffece (patch)
tree6ea73f3ec77f7d153333779883e8120f82820abe /src/3rdparty/libtiff/html/man/libtiff.3tiff.html
Initial import from the monolithic Qt.
This is the beginning of revision history for this module. If you want to look at revision history older than this, please refer to the Qt Git wiki for how to use Git history grafting. At the time of writing, this wiki is located here: http://qt.gitorious.org/qt/pages/GitIntroductionWithQt If you have already performed the grafting and you don't see any history beyond this commit, try running "git log" with the "--follow" argument. Branched from the monolithic repo, Qt master branch, at commit 896db169ea224deb96c59ce8af800d019de63f12
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+<!-- Creator : groff version 1.18.1 -->
+<!-- CreationDate: Fri Jul 13 17:43:14 2007 -->
+<html>
+<head>
+<meta name="generator" content="groff -Thtml, see www.gnu.org">
+<meta name="Content-Style" content="text/css">
+<title>INTRO</title>
+</head>
+<body>
+
+<h1 align=center>INTRO</h1>
+<a href="#NAME">NAME</a><br>
+<a href="#SYNOPSIS">SYNOPSIS</a><br>
+<a href="#DESCRIPTION">DESCRIPTION</a><br>
+<a href="#DATA TYPES">DATA TYPES</a><br>
+<a href="#LIST OF ROUTINES">LIST OF ROUTINES</a><br>
+<a href="#TAG USAGE">TAG USAGE</a><br>
+<a href="#PSEUDO TAGS">PSEUDO TAGS</a><br>
+<a href="#DIAGNOSTICS">DIAGNOSTICS</a><br>
+<a href="#SEE ALSO">SEE ALSO</a><br>
+<a href="#BUGS">BUGS</a><br>
+
+<hr>
+<a name="NAME"></a>
+<h2>NAME</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>libtiff &minus; introduction to <i>libtiff</i>, a
+library for reading and writing</big> TIFF
+<big>files</big></p>
+</td>
+</table>
+<a name="SYNOPSIS"></a>
+<h2>SYNOPSIS</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>#include &lt;tiffio.h&gt;</b></big></p>
+<!-- INDENTATION -->
+<p><big>cc file.c <b>-ltiff</b></big></p>
+</td>
+</table>
+<a name="DESCRIPTION"></a>
+<h2>DESCRIPTION</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><i>libtiff</i> is a library for reading and writing
+data files encoded with the <i>Tag Image File</i> format,
+Revision 6.0 (or revision 5.0 or revision 4.0). This file
+format is suitable for archiving multi-color and
+monochromatic image data.</big></p>
+<!-- INDENTATION -->
+<p><big>The library supports several compression algorithms,
+as indicated by the <i>Compression</i> field, including: no
+compression (1),</big> CCITT <big>1D Huffman compression
+(2),</big> CCITT <big>Group 3 Facsimile compression
+(3),</big> CCITT <big>Group 4 Facsimile compression (4),
+Lempel-Ziv &amp; Welch compression (5), baseline JPEG
+compression (7), word-aligned 1D Huffman compression
+(32771), and PackBits compression (32773). In addition,
+several nonstandard compression algorithms are supported:
+the 4-bit compression algorithm used by the
+<i>ThunderScan</i> program (32809) (decompression only),
+NeXT&rsquo;s 2-bit compression algorithm (32766)
+(decompression only), an experimental LZ-style algorithm
+known as Deflate (32946), and an experimental CIE LogLuv
+compression scheme designed for images with high dynamic
+range (32845 for LogL and 32845 for LogLuv). Directory
+information may be in either little- or big-endian byte
+order&minus;byte swapping is automatically done by the
+library. Data bit ordering may be either Most Significant
+Bit (</big> MSB <big>) to Least Significant Bit (</big> LSB
+<big>) or</big> LSB <big>to</big> MSB. <big>Finally, the
+library does not support files in which the
+<i>BitsPerSample</i>, <i>Compression</i>,
+<i>MinSampleValue</i>, or <i>MaxSampleValue</i> fields are
+defined differently on a per-sample basis (in Rev. 6.0 the
+<i>Compression</i> tag is not defined on a per-sample basis,
+so this is immaterial).</big></p>
+</td>
+</table>
+<a name="DATA TYPES"></a>
+<h2>DATA TYPES</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>The library makes extensive use of C typedefs to
+promote portability. Two sets of typedefs are used, one for
+communication with clients of the library and one for
+internal data structures and parsing of the</big> TIFF
+<big>format. The following typedefs are exposed to users
+either through function definitions or through parameters
+passed through the varargs interfaces.</big></p></td>
+</table>
+<!-- TABS -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="3" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef unsigned short uint16;</big></p>
+</td>
+<td width="38%">
+
+<p><big>16-bit unsigned integer</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef unsigned &lt;<i>thing</i>&gt;
+uint32;</big></p>
+</td>
+<td width="38%">
+
+<p><big>32-bit unsigned integer</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef unsigned int ttag_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>directory tag</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef uint16 tdir_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>directory index</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef uint16 tsample_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>sample number</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef uint32 tstrip_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>strip number</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef uint32 ttile_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>tile number</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef int32 tsize_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>i/o size in bytes</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef void* tdata_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>image data ref</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef void* thandle_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>client data handle</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="15%"></td>
+<td width="46%">
+
+<p><big>typedef int32 toff_t;</big></p>
+</td>
+<td width="38%">
+
+<p><big>file offset</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>Note that <i>tstrip_t</i>, <i>ttile_t</i>, and
+<i>tsize_t</i> are constrained to be no more than 32-bit
+quantities by 32-bit fields they are stored in in the</big>
+TIFF <big>image. Likewise <i>tsample_t</i> is limited by the
+16-bit field used to store the <i>SamplesPerPixel</i> tag.
+<i>tdir_t</i> constrains the maximum number of</big> IFDs
+<big>that may appear in an image and may be an arbitrary
+size (w/o penalty). <i>ttag_t</i> must be either int,
+unsigned int, pointer, or double because the library uses a
+varargs interface and</big> ANSI C <big>restricts the type
+of the parameter before an ellipsis to be a promoted type.
+<i>toff_t</i> is defined as int32 because TIFF file offsets
+are (unsigned) 32-bit quantities. A signed value is used
+because some interfaces return &minus;1 on error. Finally,
+note that user-specified data references are passed as
+opaque handles and only cast at the lowest layers where
+their type is presumed.</big></p>
+</td>
+</table>
+<a name="LIST OF ROUTINES"></a>
+<h2>LIST OF ROUTINES</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>The following routines are part of the library.
+Consult specific manual pages for details on their
+operation; on most systems doing &lsquo;&lsquo;man
+function-name&rsquo;&rsquo; will work.</big></p></td>
+</table>
+<!-- TABS -->
+
+<p><big><i>Name Description</i></big></p>
+<!-- TABS -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="3" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCheckpointDirectory</big></p>
+</td>
+<td width="67%">
+
+<p><big>writes the current state of the directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCheckTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>very x,y,z,sample is within image</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCIELabToRGBInit</big></p>
+</td>
+<td width="67%">
+
+<p><big>initialize CIE L*a*b* 1976 to RGB conversion
+state</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCIELabToXYZ</big></p>
+</td>
+<td width="67%">
+
+<p><big>perform CIE L*a*b* 1976 to CIE XYZ
+conversion</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFClientOpen</big></p>
+</td>
+<td width="67%">
+
+<p><big>open a file for reading or writing</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFClose</big></p>
+</td>
+<td width="67%">
+
+<p><big>close an open file</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFComputeStrip</big></p>
+</td>
+<td width="67%">
+
+<p><big>return strip containing y,sample</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFComputeTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>return tile containing x,y,z,sample</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCurrentDirectory</big></p>
+</td>
+<td width="67%">
+
+<p><big>return index of current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCurrentRow</big></p>
+</td>
+<td width="67%">
+
+<p><big>return index of current scanline</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCurrentStrip</big></p>
+</td>
+<td width="67%">
+
+<p><big>return index of current strip</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFCurrentTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>return index of current tile</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFDataWidth</big></p>
+</td>
+<td width="67%">
+
+<p><big>return the size of TIFF data types</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFError</big></p>
+</td>
+<td width="67%">
+
+<p><big>library error handler</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFFdOpen</big></p>
+</td>
+<td width="67%">
+
+<p><big>open a file for reading or writing</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFFileName</big></p>
+</td>
+<td width="67%">
+
+<p><big>return name of open file</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFFileno</big></p>
+</td>
+<td width="67%">
+
+<p><big>return open file descriptor</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFFindCODEC</big></p>
+</td>
+<td width="67%">
+
+<p><big>find standard codec for the specific
+scheme</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFFlush</big></p>
+</td>
+<td width="67%">
+
+<p><big>flush all pending writes</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFFlushData</big></p>
+</td>
+<td width="67%">
+
+<p><big>flush pending data writes</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFGetBitRevTable</big></p>
+</td>
+<td width="67%">
+
+<p><big>return bit reversal table</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFGetField</big></p>
+</td>
+<td width="67%">
+
+<p><big>return tag value in current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFGetFieldDefaulted</big></p>
+</td>
+<td width="67%">
+
+<p><big>return tag value in current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFGetMode</big></p>
+</td>
+<td width="67%">
+
+<p><big>return open file mode</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFGetVersion</big></p>
+</td>
+<td width="67%">
+
+<p><big>return library version string</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFIsCODECConfigured</big></p>
+</td>
+<td width="67%">
+
+<p><big>check, whether we have working codec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFIsMSB2LSB</big></p>
+</td>
+<td width="67%">
+
+<p><big>return true if image data is being
+returned</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%"></td>
+<td width="67%">
+
+<p><big>with bit 0 as the most significant bit</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFIsTiled</big></p>
+</td>
+<td width="67%">
+
+<p><big>return true if image data is tiled</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFIsByteSwapped</big></p>
+</td>
+<td width="67%">
+
+<p><big>return true if image data is byte-swapped</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFNumberOfStrips</big></p>
+</td>
+<td width="67%">
+
+<p><big>return number of strips in an image</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFNumberOfTiles</big></p>
+</td>
+<td width="67%">
+
+<p><big>return number of tiles in an image</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFOpen</big></p>
+</td>
+<td width="67%">
+
+<p><big>open a file for reading or writing</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFPrintDirectory</big></p>
+</td>
+<td width="67%">
+
+<p><big>print description of the current
+directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadBufferSetup</big></p>
+</td>
+<td width="67%">
+
+<p><big>specify i/o buffer for reading</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadDirectory</big></p>
+</td>
+<td width="67%">
+
+<p><big>read the next directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadEncodedStrip</big></p>
+</td>
+<td width="67%">
+
+<p><big>read and decode a strip of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadEncodedTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>read and decode a tile of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadRawStrip</big></p>
+</td>
+<td width="67%">
+
+<p><big>read a raw strip of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadRawTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>read a raw tile of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadRGBAImage</big></p>
+</td>
+<td width="67%">
+
+<p><big>read an image into a fixed format raster</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadScanline</big></p>
+</td>
+<td width="67%">
+
+<p><big>read and decode a row of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReadTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>read and decode a tile of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFRegisterCODEC</big></p>
+</td>
+<td width="67%">
+
+<p><big>override standard codec for the specific
+scheme</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFReverseBits</big></p>
+</td>
+<td width="67%">
+
+<p><big>reverse bits in an array of bytes</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFRGBAImageBegin</big></p>
+</td>
+<td width="67%">
+
+<p><big>setup decoder state for TIFFRGBAImageGet</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFRGBAImageEnd</big></p>
+</td>
+<td width="67%">
+
+<p><big>release TIFFRGBAImage decoder state</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFRGBAImageGet</big></p>
+</td>
+<td width="67%">
+
+<p><big>read and decode an image</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFRGBAImageOK</big></p>
+</td>
+<td width="67%">
+
+<p><big>is image readable by TIFFRGBAImageGet</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFScanlineSize</big></p>
+</td>
+<td width="67%">
+
+<p><big>return size of a scanline</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSetDirectory</big></p>
+</td>
+<td width="67%">
+
+<p><big>set the current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSetSubDirectory</big></p>
+</td>
+<td width="67%">
+
+<p><big>set the current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSetErrorHandler</big></p>
+</td>
+<td width="67%">
+
+<p><big>set error handler function</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSetField</big></p>
+</td>
+<td width="67%">
+
+<p><big>set a tag&rsquo;s value in the current
+directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSetWarningHandler</big></p>
+</td>
+<td width="67%">
+
+<p><big>set warning handler function</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFStripSize</big></p>
+</td>
+<td width="67%">
+
+<p><big>returns size of a strip</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFRawStripSize</big></p>
+</td>
+<td width="67%">
+
+<p><big>returns the number of bytes in a raw
+strip</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSwabShort</big></p>
+</td>
+<td width="67%">
+
+<p><big>swap bytes of short</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSwabLong</big></p>
+</td>
+<td width="67%">
+
+<p><big>swap bytes of long</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSwabArrayOfShort</big></p>
+</td>
+<td width="67%">
+
+<p><big>swap bytes of an array of shorts</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFSwabArrayOfLong</big></p>
+</td>
+<td width="67%">
+
+<p><big>swap bytes of an array of longs</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFTileRowSize</big></p>
+</td>
+<td width="67%">
+
+<p><big>return size of a row in a tile</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFTileSize</big></p>
+</td>
+<td width="67%">
+
+<p><big>return size of a tile</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFUnRegisterCODEC</big></p>
+</td>
+<td width="67%">
+
+<p><big>unregisters the codec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFVGetField</big></p>
+</td>
+<td width="67%">
+
+<p><big>return tag value in current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFVGetFieldDefaulted</big></p>
+</td>
+<td width="67%">
+
+<p><big>return tag value in current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFVSetField</big></p>
+</td>
+<td width="67%">
+
+<p><big>set a tag&rsquo;s value in the current
+directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFVStripSize</big></p>
+</td>
+<td width="67%">
+
+<p><big>returns the number of bytes in a strip</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWarning</big></p>
+</td>
+<td width="67%">
+
+<p><big>library warning handler</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWriteDirectory</big></p>
+</td>
+<td width="67%">
+
+<p><big>write the current directory</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWriteEncodedStrip</big></p>
+</td>
+<td width="67%">
+
+<p><big>compress and write a strip of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWriteEncodedTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>compress and write a tile of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWriteRawStrip</big></p>
+</td>
+<td width="67%">
+
+<p><big>write a raw strip of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWriteRawTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>write a raw tile of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWriteScanline</big></p>
+</td>
+<td width="67%">
+
+<p><big>write a scanline of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFWriteTile</big></p>
+</td>
+<td width="67%">
+
+<p><big>compress and write a tile of data</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFXYZToRGB</big></p>
+</td>
+<td width="67%">
+
+<p><big>perform CIE XYZ to RGB conversion</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFYCbCrToRGBInit</big></p>
+</td>
+<td width="67%">
+
+<p><big>initialize YCbCr to RGB conversion state</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>TIFFYCbCrtoRGB</big></p>
+</td>
+<td width="67%">
+
+<p><big>perform YCbCr to RGB conversion</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>Auxiliary functions:</big></p></td>
+</table>
+<!-- TABS -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="3" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>_TIFFfree</big></p>
+</td>
+<td width="67%">
+
+<p><big>free memory buffer</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>_TIFFmalloc</big></p>
+</td>
+<td width="67%">
+
+<p><big>dynamically allocate memory buffer</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>_TIFFmemcmp</big></p>
+</td>
+<td width="67%">
+
+<p><big>compare contents of the memory buffers</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>_TIFFmemcpy</big></p>
+</td>
+<td width="67%">
+
+<p><big>copy contents of the one buffer to
+another</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>_TIFFmemset</big></p>
+</td>
+<td width="67%">
+
+<p><big>fill memory buffer with a constant byte</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="23%">
+
+<p><big>_TIFFrealloc</big></p>
+</td>
+<td width="67%">
+
+<p><big>dynamically reallocate memory buffer</big></p>
+</td>
+</table>
+<a name="TAG USAGE"></a>
+<h2>TAG USAGE</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>The table below lists the</big> TIFF <big>tags that
+are recognized and handled by the library. If no use is
+indicated in the table, then the library reads and writes
+the tag, but does not use it internally. Note that some tags
+are meaningful only when a particular compression scheme is
+being used; e.g. <i>Group3Options</i> is only useful if
+<i>Compression</i> is set to</big> CCITT <big>Group 3
+encoding. Tags of this sort are considered
+<i>codec-specific</i> tags and the library does not
+recognize them except when the <i>Compression</i> tag has
+been previously set to the relevant compression
+scheme.</big></p>
+<!-- INDENTATION -->
+<pre><big><i>Tag Name Value R/W Library Use/Notes
+</i></big></pre>
+</td>
+</table>
+<!-- TABS -->
+
+<table width="100%" border=0 rules="none" frame="void"
+ cols="5" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Artist</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>315</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>BadFaxLines</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>326</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>BitsPerSample</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>258</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>lots</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>CellLength</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>265</big></p>
+</td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>parsed but ignored</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>CellWidth</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>264</big></p>
+</td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>parsed but ignored</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>CleanFaxData</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>327</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ColorMap</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>320</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ColorResponseUnit</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>300</big></p>
+</td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>parsed but ignored</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Compression</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>259</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>choosing codec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ConsecutiveBadFaxLines</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>328</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>Copyright 33432 R/W</big></p></td>
+</table>
+<!-- TABS -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="5" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>DataType</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>32996</big></p>
+</td>
+<td width="53%">
+
+<p><big>R</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>obsoleted by SampleFormat tag</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>DateTime</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>306</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>DocumentName</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>269</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>DotRange</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>336</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ExtraSamples</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>338</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>lots</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>FaxRecvParams</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>34908</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>FaxSubAddress</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>34909</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>FaxRecvTime</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>34910</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>FillOrder</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>266</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>control bit order</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>FreeByteCounts</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>289</big></p>
+</td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>parsed but ignored</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>FreeOffsets</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>288</big></p>
+</td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>parsed but ignored</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>GrayResponseCurve</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>291</big></p>
+</td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>parsed but ignored</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>GrayResponseUnit</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>290</big></p>
+</td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>parsed but ignored</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Group3Options</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>292</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>used by Group 3 codec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Group4Options</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>293</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>HostComputer</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>316</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ImageDepth</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>32997</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>tile/strip calculations</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ImageDescription</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>270</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ImageLength</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>257</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>lots</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ImageWidth</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>256</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>lots</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>InkNames</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>333</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>InkSet</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>332</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>JPEGTables</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>347</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>used by JPEG codec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Make</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>271</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Matteing</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>32995</big></p>
+</td>
+<td width="53%">
+
+<p><big>R</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>obsoleted by ExtraSamples tag</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>MaxSampleValue</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>281</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>MinSampleValue</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>280</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Model</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>272</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>NewSubFileType</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>254</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>called SubFileType in spec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>NumberOfInks</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>334</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Orientation</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>274</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>PageName</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>285</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>PageNumber</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>297</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>PhotometricInterpretation</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>262</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>R/Wused by Group 3 and JPEG codecs</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>PlanarConfiguration</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>284</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Predictor</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>317</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>used by LZW and Deflate codecs</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>PrimaryChromacities</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>319</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ReferenceBlackWhite</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>532</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>ResolutionUnit</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>296</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>used by Group 3 codec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>RowsPerStrip</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>278</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>SampleFormat</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>339</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>SamplesPerPixel</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>277</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>lots</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>SMinSampleValue</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>340</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>SMaxSampleValue</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>341</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Software</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>305</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>StoNits</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>37439</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>StripByteCounts</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>279</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>StripOffsets</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>273</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>SubFileType</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>255</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>called OSubFileType in spec</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TargetPrinter</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>337</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>Thresholding</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>263</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TileByteCounts</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>324</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TileDepth</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>32998</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>tile/strip calculations</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TileLength</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>323</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TileOffsets</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>324</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TileWidth</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>322</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>data i/o</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TransferFunction</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>301</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>WhitePoint</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>318</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>XPosition</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>286</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>XResolution</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>282</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>YCbCrCoefficients</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>529</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>used by TIFFRGBAImage support</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>YCbCrPositioning</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>531</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>tile/strip size calulcations</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>YCbCrSubsampling</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>530</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>YPosition</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>286</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>YResolution</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>283</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>used by Group 3 codec</big></p>
+</td>
+</table>
+<a name="PSEUDO TAGS"></a>
+<h2>PSEUDO TAGS</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>In addition to the normal</big> TIFF <big>tags the
+library supports a collection of tags whose values lie in a
+range outside the valid range of</big> TIFF <big>tags. These
+tags are termed <i>pseud-tags</i> and are used to control
+various codec-specific functions within the library. The
+table below summarizes the defined pseudo-tags.</big></p>
+<!-- INDENTATION -->
+<pre><big><i>Tag Name Codec R/W Library Use/Notes
+</i></big></pre>
+</td>
+</table>
+<!-- TABS -->
+
+<table width="100%" border=0 rules="none" frame="void"
+ cols="5" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_FAXMODE</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>G3</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>general codec operation</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_FAXFILLFUNC</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>G3/G4</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>bitmap fill function</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_JPEGQUALITY</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>JPEG</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>compression quality control</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_JPEGCOLORMODE</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>JPEG</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>control colorspace conversions</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_JPEGTABLESMODE</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>JPEG</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>control contents of <i>JPEGTables</i> tag</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_ZIPQUALITY</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>Deflate</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/Wcompression quality level</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_PIXARLOGDATAFMT</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>PixarLog</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/Wuser data format</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_PIXARLOGQUALITY</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>PixarLog</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/Wcompression quality level</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%">
+
+<p><big>TIFFTAG_SGILOGDATAFMT</big></p>
+</td>
+<td width="8%"></td>
+<td width="6%">
+
+<p><big>SGILog</big></p>
+</td>
+<td width="53%">
+
+<p><big>R/W</big></p>
+</td>
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="21%"></td>
+<td width="8%"></td>
+<td width="6%"></td>
+<td width="53%">
+
+<p><big>user data format</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_FAXMODE</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the operation of the Group 3 codec. Possible
+values (independent bits that can be combined by
+or&rsquo;ing them together) are: FAXMODE_CLASSIC (enable
+old-style format in which the</big> RTC <big>is written at
+the end of the last strip), FAXMODE_NORTC (opposite of
+FAXMODE_CLASSIC; also called FAXMODE_CLASSF), FAXMODE_NOEOL
+(do not write</big> EOL <big>codes at the start of each row
+of data), FAXMODE_BYTEALIGN (align each encoded row to an
+8-bit boundary), FAXMODE_WORDALIGN (align each encoded row
+to an 16-bit boundary), The default value is dependent on
+the compression scheme; this pseudo-tag is used by the
+various G3 and G4 codecs to share code.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_FAXFILLFUNC</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the function used to convert arrays of black
+and white runs to packed bit arrays. This hook can be used
+to image decoded scanlines in multi-bit depth rasters (e.g.
+for display in colormap mode) or for other purposes. The
+default value is a pointer to a builtin function that images
+packed bilevel data.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_IPTCNEWSPHOTO</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Tag contaings image metadata per the IPTC newsphoto
+spec: Headline, captioning, credit, etc... Used by most wire
+services.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_PHOTOSHOP</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Tag contains Photoshop captioning information and
+metadata. Photoshop uses in parallel and redundantly
+alongside IPTCNEWSPHOTO information.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_JPEGQUALITY</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the compression quality level used in the
+baseline algorithm. Note that quality levels are in the
+range 0-100 with a default value of 75.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_JPEGCOLORMODE</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control whether or not conversion is done between
+RGB and YCbCr colorspaces. Possible values are:
+JPEGCOLORMODE_RAW (do not convert), and JPEGCOLORMODE_RGB
+(convert to/from RGB) The default value is
+JPEGCOLORMODE_RAW.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_JPEGTABLESMODE</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the information written in the
+<i>JPEGTables</i> tag. Possible values (independent bits
+that can be combined by or&rsquo;ing them together) are:
+JPEGTABLESMODE_QUANT (include quantization tables), and
+JPEGTABLESMODE_HUFF (include Huffman encoding tables). The
+default value is
+JPEGTABLESMODE_QUANT|JPEGTABLESMODE_HUFF.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_ZIPQUALITY</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the compression technique used by the
+Deflate codec. Quality levels are in the range 1-9 with
+larger numbers yielding better compression at the cost of
+more computation. The default quality level is 6 which
+yields a good time-space tradeoff.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_PIXARLOGDATAFMT</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the format of user data passed <i>in</i> to
+the PixarLog codec when encoding and passed <i>out</i> from
+when decoding. Possible values are: PIXARLOGDATAFMT_8BIT for
+8-bit unsigned pixels, PIXARLOGDATAFMT_8BITABGR for 8-bit
+unsigned ABGR-ordered pixels, PIXARLOGDATAFMT_11BITLOG for
+11-bit log-encoded raw data, PIXARLOGDATAFMT_12BITPICIO for
+12-bit PICIO-compatible data, PIXARLOGDATAFMT_16BIT for
+16-bit signed samples, and PIXARLOGDATAFMT_FLOAT for 32-bit
+IEEE floating point samples.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_PIXARLOGQUALITY</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the compression technique used by the
+PixarLog codec. This value is treated identically to
+TIFFTAG_ZIPQUALITY; see the above description.</big></p>
+</td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>TIFFTAG_SGILOGDATAFMT</b></big></p></td>
+</table>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="19%"></td>
+<td width="80%">
+<p><big>Control the format of client data passed <i>in</i>
+to the SGILog codec when encoding and passed <i>out</i> from
+when decoding. Possible values are: SGILOGDATAFMT_FLTXYZ for
+converting between LogLuv and 32-bit IEEE floating valued
+XYZ pixels, SGILOGDATAFMT_16BITLUV for 16-bit encoded Luv
+pixels, SGILOGDATAFMT_32BITRAW and SGILOGDATAFMT_24BITRAW
+for no conversion of data, SGILOGDATAFMT_8BITRGB for
+returning 8-bit RGB data (valid only when decoding
+LogLuv-encoded data), SGILOGDATAFMT_FLTY for converting
+between LogL and 32-bit IEEE floating valued Y pixels,
+SGILOGDATAFMT_16BITL for 16-bit encoded L pixels, and
+SGILOGDATAFMT_8BITGRY for returning 8-bit greyscale data
+(valid only when decoding LogL-encoded data).</big></p>
+</td>
+</table>
+<a name="DIAGNOSTICS"></a>
+<h2>DIAGNOSTICS</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>All error messages are directed through the
+<i>TIFFError</i> routine. By default messages are directed
+to <b>stderr</b> in the form: <i>module: message\n.</i>
+Warning messages are likewise directed through the
+<i>TIFFWarning</i> routine.</big></p>
+</td>
+</table>
+<a name="SEE ALSO"></a>
+<h2>SEE ALSO</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big><b>fax2tiff</b>(1), <b>gif2tiff</b>(1),
+<b>pal2rgb</b>(1), <b>ppm2tiff</b>(1), <b>rgb2ycbcr</b>(1),
+<b>ras2tiff</b>(1), <b>raw2tiff</b>(1), <b>sgi2tiff</b>(1),
+<b>tiff2bw</b>(1), <b>tiffdither</b>(1), <b>tiffdump</b>(1),
+<b>tiffcp</b>(1), <b>tiffcmp</b>(1), <b>tiffgt</b>(1),
+<b>tiffinfo</b>(1), <b>tiffmedian</b>(1),
+<b>tiffsplit</b>(1), <b>tiffsv</b>(1).</big></p>
+<!-- INDENTATION -->
+<p><big><b>Tag Image File Format Specification &mdash;
+Revision 6.0</b>, an Aldus Technical Memorandum.</big></p>
+<!-- INDENTATION -->
+<p><big><b>The Spirit of TIFF Class F</b>, an appendix to
+the TIFF 5.0 specification prepared by Cygnet
+Technologies.</big></p>
+<!-- INDENTATION -->
+<p><big>Libtiff library home page:
+<b>http://www.remotesensing.org/libtiff/</b></big></p>
+</td>
+</table>
+<a name="BUGS"></a>
+<h2>BUGS</h2>
+<!-- INDENTATION -->
+<table width="100%" border=0 rules="none" frame="void"
+ cols="2" cellspacing="0" cellpadding="0">
+<tr valign="top" align="left">
+<td width="8%"></td>
+<td width="91%">
+<p><big>The library does not support multi-sample images
+where some samples have different bits/sample.</big></p>
+<!-- INDENTATION -->
+<p><big>The library does not support random access to
+compressed data that is organized with more than one row per
+tile or strip.</big></p>
+</td>
+</table>
+<hr>
+</body>
+</html>
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