2002-10-07 09:47:36 -04:00
|
|
|
<html>
|
|
|
|
|
<head>
|
|
|
|
|
<meta name="generator" content="groff -Thtml, see www.gnu.org">
|
|
|
|
|
<meta name="Content-Style" content="text/css">
|
|
|
|
|
<title>TIFF2BW</title>
|
|
|
|
|
</head>
|
|
|
|
|
<body>
|
|
|
|
|
|
|
|
|
|
<h1 align=center>TIFF2BW</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="#SEE ALSO">SEE ALSO</a><br>
|
|
|
|
|
|
|
|
|
|
<hr>
|
|
|
|
|
<!-- Creator : groff version 1.18 -->
|
|
|
|
|
<!-- CreationDate: Mon Oct 7 17:36:37 2002 -->
|
|
|
|
|
<a name="NAME"></a>
|
|
|
|
|
<h2>NAME</h2>
|
|
|
|
|
<!-- INDENTATION -->
|
|
|
|
|
<p><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>tiff2bw − convert a color <small>TIFF</small> image
|
|
|
|
|
to greyscale</p>
|
|
|
|
|
</td>
|
|
|
|
|
</table></p>
|
|
|
|
|
<a name="SYNOPSIS"></a>
|
|
|
|
|
<h2>SYNOPSIS</h2>
|
|
|
|
|
<!-- INDENTATION -->
|
|
|
|
|
<p><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><b>tiff2bw</b> [ options ] <i>input.tif
|
|
|
|
|
output.tif</i></p>
|
|
|
|
|
</td>
|
|
|
|
|
</table></p>
|
|
|
|
|
<a name="DESCRIPTION"></a>
|
|
|
|
|
<h2>DESCRIPTION</h2>
|
|
|
|
|
<!-- INDENTATION -->
|
|
|
|
|
<p><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><i>Tiff2bw</i> converts an <small>RGB</small> or Palette
|
|
|
|
|
color <small>TIFF</small> image to a greyscale image by
|
1999-11-22 23:29:23 -05:00
|
|
|
combining percentages of the red, green, and blue channels.
|
2002-10-07 09:47:36 -04:00
|
|
|
By default, output samples are created by taking 28% of the
|
|
|
|
|
red channel, 59% of the green channel, and 11% of the blue
|
|
|
|
|
channel. To alter these percentages, the <b>−R</b>,
|
|
|
|
|
<b>−G</b>, and <b>−B</b> options may be
|
|
|
|
|
used.</p>
|
|
|
|
|
</td>
|
|
|
|
|
</table></p>
|
|
|
|
|
<a name="OPTIONS"></a>
|
|
|
|
|
<h2>OPTIONS</h2>
|
|
|
|
|
<!-- TABS -->
|
|
|
|
|
<p><table width="100%" border=0 rules="none" frame="void"
|
|
|
|
|
cols="5" cellspacing="0" cellpadding="0">
|
|
|
|
|
<tr valign="top" align="left">
|
|
|
|
|
<td width="10%"></td>
|
|
|
|
|
<td width="3%">
|
|
|
|
|
|
|
|
|
|
<p><b>−c</b></p>
|
|
|
|
|
</td>
|
|
|
|
|
<td width="5%"></td>
|
|
|
|
|
<td width="80%">
|
|
|
|
|
|
|
|
|
|
<p>Specify a compression scheme to use when writing image
|
|
|
|
|
data: <b>−c none</b> for no compression, <b>-c
|
|
|
|
|
packbits</b> for the PackBits compression algorithm, <b>-c
|
|
|
|
|
zip</b> for the Deflate compression algorithm, <b>-c g3</b>
|
|
|
|
|
for the CCITT Group 3 compression algorithm, <b>-c g4</b>
|
|
|
|
|
for the CCITT Group 4 compression algorithm, and <b>−c
|
|
|
|
|
lzw</b> for Lempel-Ziv & Welch (the default).</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>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>
|
|
|
|
|
</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>Specify the percentage of the red channel to use
|
|
|
|
|
(default 28).</p>
|
|
|
|
|
</td>
|
|
|
|
|
<td width="0%">
|
|
|
|
|
</td>
|
|
|
|
|
<tr valign="top" align="left">
|
|
|
|
|
<td width="10%"></td>
|
|
|
|
|
<td width="3%">
|
|
|
|
|
|
|
|
|
|
<p><b>−G</b></p>
|
|
|
|
|
</td>
|
|
|
|
|
<td width="5%"></td>
|
|
|
|
|
<td width="80%">
|
|
|
|
|
|
|
|
|
|
<p>Specify the percentage of the green channel to use
|
|
|
|
|
(default 59).</p>
|
|
|
|
|
</td>
|
|
|
|
|
<td width="0%">
|
|
|
|
|
</td>
|
|
|
|
|
<tr valign="top" align="left">
|
|
|
|
|
<td width="10%"></td>
|
|
|
|
|
<td width="3%">
|
|
|
|
|
|
|
|
|
|
<p><b>−B</b></p>
|
|
|
|
|
</td>
|
|
|
|
|
<td width="5%"></td>
|
|
|
|
|
<td width="80%">
|
|
|
|
|
|
|
|
|
|
<p>Specify the percentage of the blue channel to use
|
|
|
|
|
(default 11).</p>
|
|
|
|
|
</td>
|
|
|
|
|
<td width="0%">
|
|
|
|
|
</td>
|
|
|
|
|
</table></p>
|
|
|
|
|
<a name="SEE ALSO"></a>
|
|
|
|
|
<h2>SEE ALSO</h2>
|
|
|
|
|
<!-- INDENTATION -->
|
|
|
|
|
<p><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><i>pal2rgb</i>(1), <i>tiffinfo</i>(1), <i>tiffcp</i>(1),
|
|
|
|
|
<i>tiffmedian</i>(1), <i>libtiff</i>(3)</p>
|
|
|
|
|
</td>
|
|
|
|
|
</table></p>
|
|
|
|
|
<hr>
|
|
|
|
|
</body>
|
|
|
|
|
</html>
|
