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<title>RAW2TIFF</title>
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<h1 align=center>RAW2TIFF</h1>
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<a href="#NAME">NAME</a><br>
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<a href="#SYNOPSIS">SYNOPSIS</a><br>
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<a href="#DESCRIPTION">DESCRIPTION</a><br>
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<a href="#OPTIONS">OPTIONS</a><br>
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<a href="#GUESSING THE IMAGE GEOMETRY">GUESSING THE IMAGE GEOMETRY</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<!-- CreationDate: Mon Dec 22 00:39:32 2003 -->
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raw2tiff - create a <small>TIFF</small> file from a raw data</td></table>
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<a name="SYNOPSIS"></a>
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cols="2" cellspacing="0" cellpadding="0">
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<b>raw2tiff</b> [ <i>options</i> ] <i>input.raw
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output.tif</i></td></table>
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<a name="DESCRIPTION"></a>
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<i>raw2tiff</i> converts a raw byte sequence into
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<small>TIFF.</small> By default, the <small>TIFF</small>
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image is created with data samples packed
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(<i>PlanarConfiguration</i>=1), compressed with the PackBits
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algorithm (<i>Compression</i>=<i>32773),</i> and with each
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strip no more than 8 kilobytes. These characteristics can
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overridden, or explicitly specified with the options
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described below.</td></table>
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<a name="OPTIONS"></a>
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<b>-H <number></b></td></table>
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cols="2" cellspacing="0" cellpadding="0">
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size of input image file header in bytes (0 by default).
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This amount of data just will be skipped from the start of
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file while reading.</td></table>
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cols="2" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td><td width="90%">
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<b>-w <number></b></td></table>
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cols="2" cellspacing="0" cellpadding="0">
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width of input image in pixels (can be guessed, see
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<b><small>GUESSING THE IMAGE GEOMETRY</small></b>
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cols="2" cellspacing="0" cellpadding="0">
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<td width="10%"></td><td width="90%">
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<b>-l <number></b></td></table>
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cols="2" cellspacing="0" cellpadding="0">
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length of input image in lines(can be guessed, see
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<b><small>GUESSING THE IMAGE GEOMETRY</small></b>
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cols="2" cellspacing="0" cellpadding="0">
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<td width="10%"></td><td width="90%">
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<b>-b <number></b></td></table>
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cols="2" cellspacing="0" cellpadding="0">
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number of bands in input image (1 by default).</td></table>
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cols="2" cellspacing="0" cellpadding="0">
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<td width="10%"></td><td width="90%">
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<b>-d data_type</b></td></table>
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type of samples in input image, where <b>data_type</b> may
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byte</i> 8-bit unsigned integer (default),<i><br>
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short</i> 16-bit unsigned integer,<i><br>
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long</i> 32-bit unsigned integer,<i><br>
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sbyte</i> 8-bit signed integer,<i><br>
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sshort</i> 16-bit signed integer,<i><br>
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slong</i> 32-bit signed integer,<i><br>
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float</i> 32-bit IEEE floating point,<i><br>
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double</i> 64-bit IEEE floating point,</td></table>
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cols="2" cellspacing="0" cellpadding="0">
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<td width="10%"></td><td width="90%">
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<b>-i config</b></td></table>
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type of samples interleaving in input image, where
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<b>config</b> may be:<i><br>
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pixel</i> pixel interleaved data (default),<i><br>
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band</i> band interleaved data.</td></table>
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cols="2" cellspacing="0" cellpadding="0">
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<b>-p photo</b></td></table>
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photometric interpretation (color space) of the input image,
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where <b>photo</b> may be:<i><br>
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miniswhite</i> white color represented with 0 value,<i><br>
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minisblack</i> black color represented with 0 value
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rgb</i> image has RGB color model,<i><br>
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cmyk</i> image has CMYK (separated) color model,<i><br>
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ycbcr</i> image has YCbCr color model,<i><br>
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cielab</i> image has CIE L*a*b color model,<i><br>
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icclab</i> image has ICC L*a*b color model,<i><br>
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itulab</i> image has ITU L*a*b color model,</td></table>
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<b>-s</b></td></table>
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swap bytes fetched from the input file.</td></table>
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<b>-L</b></td></table>
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input data has LSB2MSB bit order (default).</td></table>
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<b>-M</b></td></table>
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input data has MSB2LSB bit order.</td></table>
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<b>-c</b></td></table>
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Specify a compression scheme to use when writing image data:
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<b>-c none</b> for no compression, <b>-c packbits</b> for
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the PackBits compression algorithm (the default), <b>-c
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jpeg</b> for the baseline JPEG compression algorithm, <b>-c
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zip</b> for the Deflate compression algorithm, and <b>-c
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lzw</b> for Lempel-Ziv & Welch.</td></table>
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<b>-r <number></b></td></table>
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Write data with a specified number of rows per strip; by
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default the number of rows/strip is selected so that each
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strip is approximately 8 kilobytes.</td></table>
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<a name="GUESSING THE IMAGE GEOMETRY"></a>
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<h2>GUESSING THE IMAGE GEOMETRY</h2>
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<i>raw2tiff</i> can guess image width and height in case one
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or both of these parameters are not specified. If you omit
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one of those parameters, the complementary one will be
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calculated based on the file size (taking into account
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header size, number of bands and data type). If you omit
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both parameters, the statistical approach will be used.
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Utility will compute correlation coefficient between two
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lines at the image center using several appropriate line
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sizes and the highest absolute value of the coefficient will
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indicate the right line size. That is why you should be
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cautious with the very large images, because guessing
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process may take a while (depending on your system
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perfomance). Of course, the utility can't guess the header
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size, number of bands and data type, so it should be
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specified manually. If you don't know anything about your
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image, just try with the several combinations of those
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options.</td></table>
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There is no magic, it is just a mathematical statistics, so
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it can be wrong in some cases. But for most ordinary images
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guessing method will work fine.</td></table>
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<a name="SEE ALSO"></a>
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<i>pal2rgb</i>(1), <i>tiffinfo</i>(1), <i>tiffcp</i>(1),
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<i>tiffmedian</i>(1), <i>libtiff</i>(3)</td></table>
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