608 lines
14 KiB
HTML
608 lines
14 KiB
HTML
<!-- Creator : groff version 1.18.1 -->
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<!-- CreationDate: Sat Feb 24 18:37:18 2007 -->
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<html>
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<head>
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<meta name="generator" content="groff -Thtml, see www.gnu.org">
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<meta name="Content-Style" content="text/css">
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<title>FAX2TIFF</title>
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</head>
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<body>
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<h1 align=center>FAX2TIFF</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="#DIAGNOSTICS">DIAGNOSTICS</a><br>
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<a href="#BUGS">BUGS</a><br>
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<a href="#SEE ALSO">SEE ALSO</a><br>
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<hr>
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<a name="NAME"></a>
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<h2>NAME</h2>
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<!-- INDENTATION -->
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<table width="100%" border=0 rules="none" frame="void"
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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="8%"></td>
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<td width="91%">
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<p>fax2tiff − create a <small>TIFF</small> Class F fax
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file from raw fax data</p>
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</td>
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</table>
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<a name="SYNOPSIS"></a>
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<h2>SYNOPSIS</h2>
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<table width="100%" border=0 rules="none" frame="void"
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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="8%"></td>
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<td width="91%">
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<p><b>fax2tiff</b> [ <i>options</i> ] [ <b>−o</b>
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<i>output.tif</i> ] <i>input.raw</i></p>
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</td>
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</table>
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<a name="DESCRIPTION"></a>
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<h2>DESCRIPTION</h2>
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<!-- INDENTATION -->
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<table width="100%" border=0 rules="none" frame="void"
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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="8%"></td>
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<td width="91%">
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<p><i>Fax2tiff</i> creates a <small>TIFF</small> file
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containing <small>CCITT</small> Group 3 or Group 4 encoded
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data from one or more files containing
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‘‘raw’’ Group 3 or Group 4 encoded
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data (typically obtained directly from a fax modem). By
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default, each row of data in the resultant
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<small>TIFF</small> file is 1-dimensionally encoded and
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padded or truncated to 1728 pixels, as needed. The resultant
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image is a set of low resolution (98 lines/inch) or medium
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resolution (196 lines/inch) pages, each of which is a single
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strip of data. The generated file conforms to the
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<small>TIFF</small> Class F ( <small>FAX</small> )
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specification for storing facsimile data. This means, in
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particular, that each page of the data does <b>not</b>
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include the trailing <i>return to control</i> (
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<small>RTC</small> ) code; as required for transmission by
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the <small>CCITT</small> Group 3 specifications. The old,
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‘‘classic’’, format is created if
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the <b>−c</b> option is used. (The Class F format can
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also be requested with the <b>−f</b> option.)</p>
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<!-- INDENTATION -->
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<p>The default name of the output image is <i>fax.tif</i>;
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this can be changed with the <b>−o</b> option. Each
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input file is assumed to be a separate page of facsimile
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data from the same document. The order in which input files
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are specified on the command line is the order in which the
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resultant pages appear in the output file.</p>
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</td>
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</table>
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<a name="OPTIONS"></a>
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<h2>OPTIONS</h2>
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<!-- INDENTATION -->
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<table width="100%" border=0 rules="none" frame="void"
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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="8%"></td>
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<td width="91%">
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<p>Options that affect the interpretation of input data
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are:</p>
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</td>
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</table>
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<!-- TABS -->
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<table width="100%" border=0 rules="none" frame="void"
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cols="5" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−3</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>Assume input data is <small>CCITT</small> Group 3
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encoded (default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−4</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>Assume input data is <small>CCITT</small> Group 4
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encoded.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−U</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>Assume input data is uncompressed (Group 3 or Group
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4).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−1</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>Assume input data is encoded with the 1-dimensional
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version of the <small>CCITT</small> Group 3 Huffman encoding
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algorithm (default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−2</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>Assume input data is 2-dimensional version of the
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<small>CCITT</small> Group 3 Huffman encoding algorithm.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−P</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>Assume input data is <b>not</b> EOL-aligned (default).
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This option has effect with Group 3 encoded input only.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−A</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>Assume input data is EOL-aligned. This option has effect
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with Group 3 encoded input only.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−M</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>Treat input data as having bits filled from most
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significant bit ( <small>MSB</small> ) to most least bit (
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<small>LSB</small> ).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−L</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>Treat input data as having bits filled from least
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significant bit ( <small>LSB</small> ) to most significant
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bit ( <small>MSB</small> ) (default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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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>Assume input data was encoded with black as 0 and white
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as 1.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−W</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>Assume input data was encoded with black as 1 and white
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as 0 (default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−R</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 vertical resolution, in lines/inch, of the
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input images. By default input are assumed to have a
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vertical resolution of 196 lines/inch. If images are low
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resolution facsimile, a value of 98 lines/inch should be
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specified.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−X</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 width, in pixels, of the input images. By
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default input are assumed to have a width of 1728
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pixels.</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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<!-- INDENTATION -->
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<table width="100%" border=0 rules="none" frame="void"
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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="8%"></td>
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<td width="91%">
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<p>Options that affect the output file format are:</p>
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</td>
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</table>
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<!-- TABS -->
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<table width="100%" border=0 rules="none" frame="void"
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cols="5" cellspacing="0" cellpadding="0">
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−o</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 name of the output file.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−7</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>Force output to be compressed with the
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<small>CCITT</small> Group 3 Huffman encoding algorithm
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(default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−8</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>Force output to be compressed with the
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<small>CCITT</small> Group 4 Huffman encoding.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−u</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>Force output to be uncompressed (Group 3 or Group
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4).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−5</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>Force output to be encoded with the 1-dimensional
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version of the <small>CCITT</small> Group 3 Huffman encoding
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algorithm.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−6</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>Force output to be encoded with the 2-dimensional
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version of the <small>CCITT</small> Group 3 Huffman encoding
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algorithm (default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−a</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>Force the last bit of each <i>End Of Line</i> (
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<small>EOL</small> ) code to land on a byte boundary
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(default). This ‘‘zero padding’’
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will be reflected in the contents of the
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<i>Group3Options</i> tag of the resultant
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<small>TIFF</small> file. This option has effect with Group
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3 encoded output only.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−p</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>Do not EOL-align output. This option has effect with
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Group 3 encoded output only.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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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>Generate "classic" Group 3 TIFF format.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−f</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>Generate TIFF Class F (TIFF/F) format (default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−m</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>Force output data to have bits filled from most
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significant bit ( <small>MSB</small> ) to most least bit (
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<small>LSB</small> ).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−l</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>Force output data to have bits filled from least
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significant bit ( <small>LSB</small> ) to most significant
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bit ( <small>MSB</small> ) (default).</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−r</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 number of rows (scanlines) in each strip of
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data written to the output file. By default (or when value
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<b>0</b> is specified), <i>tiffcp</i> attempts to set the
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rows/strip that no more than 8 kilobytes of data appear in a
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strip (with except of G3/G4 compression schemes). If you
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specify special value <b>−1</b> it will results in
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infinite number of the rows per strip. The entire image will
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be the one strip in that case. This is default in case of
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G3/G4 output compression schemes.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−s</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>Stretch the input image vertically by writing each input
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row of data twice to the output file.</p>
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</td>
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<td width="0%">
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</td>
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<tr valign="top" align="left">
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<td width="10%"></td>
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<td width="3%">
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<p><b>−v</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>Force <i>fax2tiff</i> to print the number of rows of
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data it retrieved from the input file.</p>
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</td>
|
|
<td width="0%">
|
|
</td>
|
|
<tr valign="top" align="left">
|
|
<td width="10%"></td>
|
|
<td width="3%">
|
|
|
|
<p><b>−z</b></p>
|
|
</td>
|
|
<td width="5%"></td>
|
|
<td width="80%">
|
|
|
|
<p>Force output to be compressed with the LZW encoding.</p>
|
|
</td>
|
|
<td width="0%">
|
|
</td>
|
|
</table>
|
|
<a name="DIAGNOSTICS"></a>
|
|
<h2>DIAGNOSTICS</h2>
|
|
<!-- INDENTATION -->
|
|
<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>The following warnings and errors come from the decoding
|
|
routines in the library.</p>
|
|
<!-- INDENTATION -->
|
|
<p><b>Warning, %s: Premature EOL at scanline %d (x
|
|
%d).\n</b>. The input data had a row that was shorter than
|
|
the expected width. The row is padded with white.</p>
|
|
<!-- INDENTATION -->
|
|
<p><b>%s: Premature EOF at scanline %d (x %d).\n</b>. The
|
|
decoder ran out of data in the middle of a scanline. The
|
|
resultant row is padded with white.</p>
|
|
<!-- INDENTATION -->
|
|
<p><b>%s: Bad code word at row %d, x %d\n</b>. An invalid
|
|
Group 3 <i>code</i> was encountered while decoding the input
|
|
file. The row number and horizontal position is given. The
|
|
remainder of the input row is discarded, while the
|
|
corresponding output row is padded with white.</p>
|
|
<!-- INDENTATION -->
|
|
<p><b>%s: Bad 2D code word at scanline %d.\n</b>. An invalid
|
|
Group 4 or 2D Group 3 <i>code</i> was encountered while
|
|
decoding the input file. The row number and horizontal
|
|
position is given. The remainder of the input row is
|
|
discarded, while the corresponding output row is padded with
|
|
white.</p>
|
|
</td>
|
|
</table>
|
|
<a name="BUGS"></a>
|
|
<h2>BUGS</h2>
|
|
<!-- INDENTATION -->
|
|
<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>Input data are assumed to have a a ‘‘top
|
|
left’’ orientation; it should be possible to
|
|
override this assumption from the command line.</p>
|
|
</td>
|
|
</table>
|
|
<a name="SEE ALSO"></a>
|
|
<h2>SEE ALSO</h2>
|
|
<!-- INDENTATION -->
|
|
<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><small>CCITT</small> Recommendation T.4</b>
|
|
(Standardization of Group 3 Facsimile Apparatus for Document
|
|
Transmission).</p>
|
|
<!-- INDENTATION -->
|
|
<p><b>The Spirit of TIFF Class F</b>, an appendix to the
|
|
TIFF 5.0 specification prepared by Cygnet Technologies.</p>
|
|
<!-- INDENTATION -->
|
|
<p><b>tiffinfo</b>(1), <b>tiffdither</b>(1),
|
|
<b>tiffgt</b>(1), <b>libtiff</b>(3)</p>
|
|
<!-- INDENTATION -->
|
|
<p>Libtiff library home page:
|
|
<b>http://www.simplesystems.org/libtiff/</b></p>
|
|
</td>
|
|
</table>
|
|
<hr>
|
|
</body>
|
|
</html>
|