source: trunk/src/3rdparty/libtiff/html/man/thumbnail.1.html

Last change on this file was 846, checked in by Dmitry A. Kuminov, 14 years ago

trunk: Merged in qt 4.7.2 sources from branches/vendor/nokia/qt.
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1<!-- Creator : groff version 1.18.1 -->
2<!-- CreationDate: Fri Jul 13 17:43:19 2007 -->
3<html>
4<head>
5<meta name="generator" content="groff -Thtml, see www.gnu.org">
6<meta name="Content-Style" content="text/css">
7<title>THUMBNAIL</title>
8</head>
9<body>
10
11<h1 align=center>THUMBNAIL</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>
22<!-- INDENTATION -->
23<table width="100%" border=0 rules="none" frame="void"
24 cols="2" cellspacing="0" cellpadding="0">
25<tr valign="top" align="left">
26<td width="8%"></td>
27<td width="91%">
28<p>thumbnail &minus; create a <small>TIFF</small> file with
29thumbnail images</p>
30</td>
31</table>
32<a name="SYNOPSIS"></a>
33<h2>SYNOPSIS</h2>
34<!-- INDENTATION -->
35<table width="100%" border=0 rules="none" frame="void"
36 cols="2" cellspacing="0" cellpadding="0">
37<tr valign="top" align="left">
38<td width="8%"></td>
39<td width="91%">
40<p><b>thumbnail</b> [ <i>options</i> ] <i>input.tif
41output.tif</i></p>
42</td>
43</table>
44<a name="DESCRIPTION"></a>
45<h2>DESCRIPTION</h2>
46<!-- INDENTATION -->
47<table width="100%" border=0 rules="none" frame="void"
48 cols="2" cellspacing="0" cellpadding="0">
49<tr valign="top" align="left">
50<td width="8%"></td>
51<td width="91%">
52<p><i>thumbnail</i> is a program written to show how one
53might use the SubIFD tag (#330) to store thumbnail images.
54<i>thumbnail</i> copies a <small>TIFF</small> Class F
55facsimile file to the output file and for each image an
568-bit greyscale <i>thumbnail sketch</i>. The output file
57contains the thumbnail image with the associated
58full-resolution page linked below with the SubIFD tag.</p>
59<!-- INDENTATION -->
60<p>By default, thumbnail images are 216 pixels wide by 274
61pixels high. Pixels are calculated by sampling and filtering
62the input image with each pixel value passed through a
63contrast curve.</p>
64</td>
65</table>
66<a name="OPTIONS"></a>
67<h2>OPTIONS</h2>
68<!-- TABS -->
69<table width="100%" border=0 rules="none" frame="void"
70 cols="5" cellspacing="0" cellpadding="0">
71<tr valign="top" align="left">
72<td width="10%"></td>
73<td width="3%">
74
75<p><b>&minus;w</b></p>
76</td>
77<td width="5%"></td>
78<td width="80%">
79
80<p>Specify the width of thumbnail images in pixels.</p>
81</td>
82<td width="0%">
83</td>
84<tr valign="top" align="left">
85<td width="10%"></td>
86<td width="3%">
87
88<p><b>&minus;h</b></p>
89</td>
90<td width="5%"></td>
91<td width="80%">
92
93<p>Specify the height of thumbnail images in pixels.</p>
94</td>
95<td width="0%">
96</td>
97<tr valign="top" align="left">
98<td width="10%"></td>
99<td width="3%">
100
101<p><b>&minus;c</b></p>
102</td>
103<td width="5%"></td>
104<td width="80%">
105
106<p>Specify a contrast curve to apply in generating the
107thumbnail images. By default pixels values are passed
108through a linear contrast curve that simply maps the pixel
109value ranges. Alternative curves are: <b>exp50</b> for a 50%
110exponential curve, <b>exp60</b> for a 60% exponential curve,
111<b>exp70</b> for a 70% exponential curve, <b>exp80</b> for a
11280% exponential curve, <b>exp90</b> for a 90% exponential
113curve, <b>exp</b> for a pure exponential curve,
114<b>linear</b> for a linear curve.</p>
115</td>
116<td width="0%">
117</td>
118</table>
119<a name="BUGS"></a>
120<h2>BUGS</h2>
121<!-- INDENTATION -->
122<table width="100%" border=0 rules="none" frame="void"
123 cols="2" cellspacing="0" cellpadding="0">
124<tr valign="top" align="left">
125<td width="8%"></td>
126<td width="91%">
127<p>There are no options to control the format of the saved
128thumbnail images.</p>
129</td>
130</table>
131<a name="SEE ALSO"></a>
132<h2>SEE ALSO</h2>
133<!-- INDENTATION -->
134<table width="100%" border=0 rules="none" frame="void"
135 cols="2" cellspacing="0" cellpadding="0">
136<tr valign="top" align="left">
137<td width="8%"></td>
138<td width="91%">
139<p><b>tiffdump</b>(1), <b>tiffgt</b>(1), <b>tiffinfo</b>(1),
140<b>libtiff</b>(3)</p>
141<!-- INDENTATION -->
142<p>Libtiff library home page:
143<b>http://www.remotesensing.org/libtiff/</b></p>
144</td>
145</table>
146<hr>
147</body>
148</html>
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