| author | Dremov Kirill (Nokia-D-MSW/Tampere) <kirill.dremov@nokia.com> |
| Tue, 06 Jul 2010 15:10:48 +0300 | |
| changeset 30 | 5dc02b23752f |
| parent 0 | 1918ee327afb |
| permissions | -rw-r--r-- |
| 0 | 1 |
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<title>TIFF2BW</title> |
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<h1 align=center>TIFF2BW</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="#SEE ALSO">SEE ALSO</a><br> |
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<a name="NAME"></a> |
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<h2>NAME</h2> |
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<p>tiff2bw − convert a color <small>TIFF</small> image |
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to greyscale</p> |
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</td> |
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<a name="SYNOPSIS"></a> |
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<h2>SYNOPSIS</h2> |
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<p><b>tiff2bw</b> [ <i>options</i> ] <i>input.tif |
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output.tif</i></p> |
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<a name="DESCRIPTION"></a> |
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<h2>DESCRIPTION</h2> |
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<p><i>Tiff2bw</i> converts an <small>RGB</small> or Palette |
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color <small>TIFF</small> image to a greyscale image by |
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combining percentages of the red, green, and blue channels. |
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By default, output samples are created by taking 28% of the |
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red channel, 59% of the green channel, and 11% of the blue |
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channel. To alter these percentages, the <b>−R</b>, |
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<b>−G</b>, and <b>−B</b> options may be |
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used.</p> |
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</td> |
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<a name="OPTIONS"></a> |
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<h2>OPTIONS</h2> |
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<p><b>−c</b></p> |
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</td> |
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<td width="5%"></td> |
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<td width="80%"> |
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<p>Specify a compression scheme to use when writing image |
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data: <b>−c none</b> for no compression, <b>−c |
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packbits</b> for the PackBits compression algorithm, |
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<b>−c zip</b> for the Deflate compression algorithm, |
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<b>−c g3</b> for the CCITT Group 3 compression |
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algorithm, <b>−c g4</b> for the CCITT Group 4 |
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compression algorithm, and <b>−c lzw</b> for |
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Lempel-Ziv & Welch (the default).</p> |
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<p><b>−r</b></p> |
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<p>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.</p> |
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<p><b>−R</b></p> |
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<td width="5%"></td> |
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<td width="80%"> |
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<p>Specify the percentage of the red channel to use |
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(default 28).</p> |
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<p><b>−G</b></p> |
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<td width="5%"></td> |
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<td width="80%"> |
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<p>Specify the percentage of the green channel to use |
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(default 59).</p> |
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<p><b>−B</b></p> |
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</td> |
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<td width="5%"></td> |
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<td width="80%"> |
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<p>Specify the percentage of the blue channel to use |
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(default 11).</p> |
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</td> |
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<td width="0%"> |
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</td> |
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</table> |
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<a name="SEE ALSO"></a> |
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<h2>SEE ALSO</h2> |
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<p><b>pal2rgb</b>(1), <b>tiffinfo</b>(1), <b>tiffcp</b>(1), |
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<b>tiffmedian</b>(1), <b>libtiff</b>(3)</p> |
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<p>Libtiff library home page: |
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<b>http://www.remotesensing.org/libtiff/</b></p> |
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</td> |
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</table> |
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<hr> |
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