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<title>TIFFGT</title>
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<h1 align=center>TIFFGT</h1>
<a href="#NAME">NAME</a><br>
<a href="#SYNOPSIS">SYNOPSIS</a><br>
<a href="#DESCRIPTION">DESCRIPTION</a><br>
<a href="#OPTIONS">OPTIONS</a><br>
<a href="#BUGS">BUGS</a><br>
<a href="#SEE ALSO">SEE ALSO</a><br>
<hr>
<a name="NAME"></a>
<h2>NAME</h2>
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<p>tiffgt − display an image stored in a
<small>TIFF</small> file (Silicon Graphics version)</p>
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<a name="SYNOPSIS"></a>
<h2>SYNOPSIS</h2>
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<p><b>tiffgt</b> [ <i>options</i> ] <i>input.tif ...</i></p>
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<a name="DESCRIPTION"></a>
<h2>DESCRIPTION</h2>
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<p><i>tiffgt</i> displays one or more images stored using
the Tag Image File Format, Revision 6.0. Each image is
placed in a fixed size window that the user must position on
the display (unless configured otherwise through X
defaults). If the display has fewer than 24 bitplanes, or if
the image does not warrant full color, then
<small>RGB</small> color values are mapped to the closest
values that exist in the colormap (this is done using the
<i>rgbi</i> routine found in the graphics utility library
<b>−lgutil</b>.)</p>
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<p><i>tiffgt</i> correctly handles files with any of the
following characteristics:</p></td>
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<p>BitsPerSample</p>
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<p>1, 2, 4, 8, 16</p>
</td>
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<p>SamplesPerPixel</p>
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<p>1, 3, 4 (the 4th sample is ignored)</p>
</td>
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<p>PhotometricInterpretation</p>
</td>
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<p>0 (min-is-white), 1 (min-is-black), 2 (RGB), 3
(palette), 6 (YCbCr)</p>
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<p>PlanarConfiguration</p>
</td>
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<p>1 (contiguous), 2 (separate)</p>
</td>
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<p>Orientation</p>
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<p>1 (top-left), 4 (bottom-left)</p>
</td>
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<p>Data may be organized as strips or tiles and may be
compressed with any of the compression algorithms supported
by the <i>libtiff</i>(3) library.</p>
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<p>For palette images (<i>PhotometricInterpretation</i>=3),
<i>tiffgt</i> inspects the colormap values and assumes
either 16-bit or 8-bit values according to the maximum
value. That is, if no colormap entry greater than 255 is
found, <i>tiffgt</i> assumes the colormap has only 8-bit
values; otherwise it assumes 16-bit values. This inspection
is done to handle old images written by previous (incorrect)
versions of <i>libtiff</i>.</p>
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<p><i>tiffgt</i> can be used to display multiple images
one-at-a-time. The left mouse button switches the display to
the first image in the <i>next</i> file in the list of files
specified on the command line. The right mouse button
switches to the first image in the <i>previous</i> file in
the list. The middle mouse button causes the first image in
the first file specified on the command line to be
displayed. In addition the following keyboard commands are
recognized:</p>
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<p><b>b</b></p>
</td>
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<p>Use a <i>PhotometricInterpretation</i> of MinIsBlack in
displaying the current image.</p>
</td>
<td width="0%">
</td>
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<td width="10%"></td>
<td width="8%">
<p><b>l</b></p>
</td>
<td width="80%">
<p>Use a <i>FillOrder</i> of lsb-to-msb in decoding the
current image.</p>
</td>
<td width="0%">
</td>
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<p><b>m</b></p>
</td>
<td width="80%">
<p>Use a <i>FillOrder</i> of msb-to-lsb in decoding the
current image.</p>
</td>
<td width="0%">
</td>
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<td width="10%"></td>
<td width="8%">
<p><b>c</b></p>
</td>
<td width="80%">
<p>Use a colormap visual to display the current image.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="8%">
<p><b>r</b></p>
</td>
<td width="80%">
<p>Use a true color (24-bit RGB) visual to display the
current image.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="8%">
<p><b>w</b></p>
</td>
<td width="80%">
<p>Use a <i>PhotometricInterpretation</i> of MinIsWhite in
displaying the current image.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="8%">
<p><b>W</b></p>
</td>
<td width="80%">
<p>Toggle (enable/disable) display of warning messages from
the <small>TIFF</small> library when decoding images.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="8%">
<p><b>E</b></p>
</td>
<td width="80%">
<p>Toggle (enable/disable) display of error messages from
the <small>TIFF</small> library when decoding images.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="8%">
<p><b>z</b></p>
</td>
<td width="80%">
<p>Reset all parameters to their default settings
(<i>FillOrder</i>, <i>PhotometricInterpretation</i>,
handling of warnings and errors).</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="8%">
<p><b>PageUp</b></p>
</td>
<td width="80%">
<p>Display the previous image in the current file or the
last image in the previous file.</p>
</td>
<td width="0%">
</td>
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<p><b>PageDown</b></p></td>
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<p>Display the next image in the current file or the first
image in the next file.</p>
</td>
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<p><b>Home</b></p>
</td>
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<p>Display the first image in the current file.</p>
</td>
<td width="0%">
</td>
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<p><b>End</b></p>
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<p>Display the last image in the current file
(unimplemented).</p>
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<a name="OPTIONS"></a>
<h2>OPTIONS</h2>
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<p><b>−c</b></p>
</td>
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<p>Force image display in a colormap window.</p>
</td>
<td width="0%">
</td>
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<td width="10%"></td>
<td width="3%">
<p><b>−d</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Specify an image to display by directory number. By
default the first image in the file is displayed.
Directories are numbered starting at zero.</p>
</td>
<td width="0%">
</td>
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<td width="3%">
<p><b>−e</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Enable reporting of error messages from the
<small>TIFF</small> library. By default <i>tiffgt</i>
silently ignores images that cannot be read.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="3%">
<p><b>−f</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Force <i>tiffgt</i> to run as a foreground process. By
default <i>tiffgt</i> will place itself in the background
once it has opened the requested image file.</p>
</td>
<td width="0%">
</td>
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<td width="10%"></td>
<td width="3%">
<p><b>−l</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Force the presumed bit ordering to be <small>LSB</small>
to <small>MSB.</small></p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="3%">
<p><b>−m</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Force the presumed bit ordering to be <small>MSB</small>
to <small>LSB.</small></p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="3%">
<p><b>−o</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Specify an image to display by directory offset. By
default the first image in the file is displayed.
Directories offsets may be specified using C-style syntax;
i.e. a leading ‘‘0x’’ for
hexadecimal and a leading ‘‘0’’ for
octal.</p>
</td>
<td width="0%">
</td>
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<td width="10%"></td>
<td width="3%">
<p><b>−p</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Override the value of the
<i>PhotometricInterpretation</i> tag; the parameter may be
one of: <i>miniswhite</i>, <i>minisblack</i>, <i>rgb</i>,
<i>palette</i>, <i>mask</i>, <i>separated</i>, <i>ycbcr</i>,
and <i>cielab</i>.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="3%">
<p><b>−r</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Force image display in a full color window.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="3%">
<p><b>−s</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Stop on the first read error. By default all errors in
the input data are ignored and <i>tiffgt</i> does it’s
best to display as much of an image as possible.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="3%">
<p><b>−w</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Enable reporting of warning messages from the
<small>TIFF</small> library. By default <i>tiffgt</i>
ignores warning messages generated when reading an
image.</p>
</td>
<td width="0%">
</td>
<tr valign="top" align="left">
<td width="10%"></td>
<td width="3%">
<p><b>−v</b></p>
</td>
<td width="5%"></td>
<td width="80%">
<p>Place information in the title bar describing what type
of window (full color or colormap) is being used, the name
of the input file, and the directory index of the image (if
non-zero). By default, the window type is not shown in the
title bar.</p>
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<a name="BUGS"></a>
<h2>BUGS</h2>
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<p>Images wider and taller than the display are silently
truncated to avoid crashing old versions of the window
manager.</p>
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<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
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<p><b>tiffdump</b>(1), <b>tiffinfo</b>(1), <b>tiffcp</b>(1),
<b>libtiff</b>(3TIFF)</p>
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<p>Libtiff library home page:
<b>http://www.remotesensing.org/libtiff/</b></p>
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