libtiff/html/man/ras2tiff.1.html
2005-03-06 11:11:43 +00:00

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<title>RAS2TIFF</title>
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<h1 align=center>RAS2TIFF</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>
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<a name="NAME"></a>
<h2>NAME</h2>
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<p>ras2tiff &minus; create a <small>TIFF</small> file from a
Sun rasterfile</p>
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<h2>SYNOPSIS</h2>
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<p><b>ras2tiff</b> [ <i>options</i> ] <i>input.ras
output.tif</i></p>
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<h2>DESCRIPTION</h2>
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<p><i>ras2tiff</i> converts a file in the Sun rasterfile
format to <small>TIFF.</small> By default, the
<small>TIFF</small> image is created with data samples
packed (<i>PlanarConfiguration</i>=1), compressed with the
Lempel-Ziv &amp; Welch algorithm (<i>Compression</i>=5), and
with each strip no more than 8 kilobytes. These
characteristics can overriden, or explicitly specified with
the options described below.</p>
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<p>Any colormap information in the rasterfile is carried
over to the <small>TIFF</small> file by including a
<i>Colormap</i> tag in the output file. If the rasterfile
has a colormap, the <i>PhotometricInterpretation</i> tag is
set to 3 (palette); otherwise it is set to 2 (RGB) if the
depth is 24 or 1 (min-is-black) if the depth is not 24.</p>
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<h2>OPTIONS</h2>
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<p><b>&minus;c</b></p>
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<p>Specify a compression scheme to use when writing image
data: <b>&minus;c none</b> for no compression, <b>-c
packbits</b> for the PackBits compression algorithm, <b>-c
jpeg</b> for the baseline JPEG compression algorithm, <b>-c
zip</b> for the Deflate compression algorithm, and
<b>&minus;c lzw</b> for Lempel-Ziv &amp; Welch (the
default).</p>
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<p><b>&minus;r</b></p>
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<p>Write data with a specified number of rows per strip; by
default the number of rows/strip is selected so that each
strip is approximately 8 kilobytes.</p>
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<h2>BUGS</h2>
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<p>Does not handle all possible rasterfiles. In particular,
<i>ras2tiff</i> does not handle run-length encoded
images.</p>
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<a name="SEE ALSO"></a>
<h2>SEE ALSO</h2>
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<p><i>pal2rgb</i>(1), <i>tiffinfo</i>(1), <i>tiffcp</i>(1),
<i>tiffmedian</i>(1), <i>libtiff</i>(3)</p>
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