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7<title>TIFFCMP</title>
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11<h1 align=center>TIFFCMP</h1>
12<a href="#NAME">NAME</a><br>
13<a href="#SYNOPSIS">SYNOPSIS</a><br>
14<a href="#DESCRIPTION">DESCRIPTION</a><br>
15<a href="#OPTIONS">OPTIONS</a><br>
16<a href="#BUGS">BUGS</a><br>
17<a href="#SEE ALSO">SEE ALSO</a><br>
18
19<hr>
20<a name="NAME"></a>
21<h2>NAME</h2>
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28<p>tiffcmp &minus; compare two <small>TIFF</small> files</p>
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31<a name="SYNOPSIS"></a>
32<h2>SYNOPSIS</h2>
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39<p><b>tiffcmp</b> [ <i>options</i> ] <i>file1.tif
40file2.tif</i></p>
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43<a name="DESCRIPTION"></a>
44<h2>DESCRIPTION</h2>
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51<p><i>Tiffcmp</i> compares the tags and data in two files
52created according to the Tagged Image File Format, Revision
536.0. The schemes used for compressing data in each file are
54immaterial when data are compared&minus;data are compared on
55a scanline-by-scanline basis after decompression. Most
56directory tags are checked; notable exceptions are:
57<i>GrayResponseCurve</i>, <i>ColorResponseCurve</i>, and
58<i>ColorMap</i> tags. Data will not be compared if any of
59the <i>BitsPerSample</i>, <i>SamplesPerPixel</i>, or
60<i>ImageWidth</i> values are not equal. By default,
61<i>tiffcmp</i> will terminate if it encounters any
62difference.</p>
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65<a name="OPTIONS"></a>
66<h2>OPTIONS</h2>
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73
74<p><b>&minus;l</b></p>
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78
79<p>List each byte of image data that differs between the
80files.</p>
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83</td>
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91<p><b>&minus;z</b> <i>number</i></p></td>
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99<p>List specified number of image data bytes that differs
100between the files.</p>
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102</table>
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109
110<p><b>&minus;t</b></p>
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114
115<p>Ignore any differences in directory tags.</p>
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118</td>
119</table>
120<a name="BUGS"></a>
121<h2>BUGS</h2>
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128<p>Tags that are not recognized by the library are not
129compared; they may also generate spurious diagnostics.</p>
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131<p>The image data of tiled files is not compared, since the
132<i>TIFFReadScanline()</i> function is used. An error will be
133reported for tiled files.</p>
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135<p>The pixel and/or sample number reported in differences
136may be off in some exotic cases.</p>
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139<a name="SEE ALSO"></a>
140<h2>SEE ALSO</h2>
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147<p><b>pal2rgb</b>(1), <b>tiffcp</b>(1),
148<b>tiffmedian</b>(1), <b>libtiff</b>(3TIFF)</p>
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150<p>Libtiff library home page:
151<b>http://www.simplesystems.org/libtiff/</b></p>
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