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8414a40c | 1 | <!-- Creator : groff version 1.18.1 --> |
80ed523f | 2 | <!-- CreationDate: Sat Feb 24 18:37:19 2007 --> |
8414a40c VZ |
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 − create a <small>TIFF</small> file with | |
29 | thumbnail 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 | |
41 | output.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 | |
53 | might use the SubIFD tag (#330) to store thumbnail images. | |
54 | <i>thumbnail</i> copies a <small>TIFF</small> Class F | |
55 | facsimile file to the output file and for each image an | |
56 | 8-bit greyscale <i>thumbnail sketch</i>. The output file | |
57 | contains the thumbnail image with the associated | |
58 | full-resolution page linked below with the SubIFD tag.</p> | |
59 | <!-- INDENTATION --> | |
60 | <p>By default, thumbnail images are 216 pixels wide by 274 | |
61 | pixels high. Pixels are calculated by sampling and filtering | |
62 | the input image with each pixel value passed through a | |
63 | contrast 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>−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>−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>−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 | |
107 | thumbnail images. By default pixels values are passed | |
108 | through a linear contrast curve that simply maps the pixel | |
109 | value ranges. Alternative curves are: <b>exp50</b> for a 50% | |
110 | exponential curve, <b>exp60</b> for a 60% exponential curve, | |
111 | <b>exp70</b> for a 70% exponential curve, <b>exp80</b> for a | |
112 | 80% exponential curve, <b>exp90</b> for a 90% exponential | |
113 | curve, <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 | |
128 | thumbnail 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> |