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8414a40c | 1 | <!-- Creator : groff version 1.18.1 --> |
80ed523f | 2 | <!-- CreationDate: Sat Feb 24 18:37:19 2007 --> |
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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>TIFF2RGBA</title> | |
8 | </head> | |
9 | <body> | |
10 | ||
11 | <h1 align=center>TIFF2RGBA</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="#SEE ALSO">SEE ALSO</a><br> | |
17 | ||
18 | <hr> | |
19 | <a name="NAME"></a> | |
20 | <h2>NAME</h2> | |
21 | <!-- INDENTATION --> | |
22 | <table width="100%" border=0 rules="none" frame="void" | |
23 | cols="2" cellspacing="0" cellpadding="0"> | |
24 | <tr valign="top" align="left"> | |
25 | <td width="8%"></td> | |
26 | <td width="91%"> | |
27 | <p>tiff2rgba − convert a <small>TIFF</small> image to | |
28 | RGBA color space</p> | |
29 | </td> | |
30 | </table> | |
31 | <a name="SYNOPSIS"></a> | |
32 | <h2>SYNOPSIS</h2> | |
33 | <!-- INDENTATION --> | |
34 | <table width="100%" border=0 rules="none" frame="void" | |
35 | cols="2" cellspacing="0" cellpadding="0"> | |
36 | <tr valign="top" align="left"> | |
37 | <td width="8%"></td> | |
38 | <td width="91%"> | |
80ed523f | 39 | <p><b>tiff2rgba</b> [ <i>options</i> ] <i>input.tif |
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40 | output.tif</i></p> |
41 | </td> | |
42 | </table> | |
43 | <a name="DESCRIPTION"></a> | |
44 | <h2>DESCRIPTION</h2> | |
45 | <!-- INDENTATION --> | |
46 | <table width="100%" border=0 rules="none" frame="void" | |
47 | cols="2" cellspacing="0" cellpadding="0"> | |
48 | <tr valign="top" align="left"> | |
49 | <td width="8%"></td> | |
50 | <td width="91%"> | |
51 | <p><i>Tiff2rgba</i> converts a wide variety of TIFF images | |
52 | into an RGBA TIFF image. This includes the ability to | |
53 | translate different color spaces and photometric | |
54 | interpretation into RGBA, support for alpha blending, and | |
55 | translation of many different bit depths into a 32bit RGBA | |
56 | image.</p> | |
57 | <!-- INDENTATION --> | |
58 | <p>Internally this program is implemented using the | |
59 | <i>TIFFReadRGBAImage()</i> function, and it suffers any | |
60 | limitations of that image. This includes limited support for | |
61 | > 8 BitsPerSample images, and flaws with some esoteric | |
62 | combinations of BitsPerSample, photometric interpretation, | |
63 | block organization and planar configuration.</p> | |
64 | <!-- INDENTATION --> | |
65 | <p>The generated images are stripped images with four | |
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66 | samples per pixel (red, green, blue and alpha) or if the |
67 | <b>−n</b> flag is used, three samples per pixel (red, | |
68 | green, and blue). The resulting images are always planar | |
69 | configuration contiguous. For this reason, this program is a | |
70 | useful utility for transform exotic TIFF files into a form | |
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71 | ingestible by almost any TIFF supporting software.</p> |
72 | </td> | |
73 | </table> | |
74 | <a name="OPTIONS"></a> | |
75 | <h2>OPTIONS</h2> | |
76 | <!-- TABS --> | |
77 | <table width="100%" border=0 rules="none" frame="void" | |
78 | cols="5" cellspacing="0" cellpadding="0"> | |
79 | <tr valign="top" align="left"> | |
80 | <td width="11%"></td> | |
81 | <td width="2%"> | |
82 | ||
83 | <p><b>−c</b></p> | |
84 | </td> | |
85 | <td width="5%"></td> | |
86 | <td width="80%"> | |
87 | ||
88 | <p>Specify a compression scheme to use when writing image | |
89 | data: <b>−c none</b> for no compression (the default), | |
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90 | <b>−c packbits</b> for the PackBits compression |
91 | algorithm, <b>−c zip</b> for the Deflate compression | |
92 | algorithm, <b>−c jpeg</b> for the JPEG compression | |
93 | algorithm, and <b>−c lzw</b> for Lempel-Ziv & | |
94 | Welch.</p> | |
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95 | </td> |
96 | <td width="0%"> | |
97 | </td> | |
98 | <tr valign="top" align="left"> | |
99 | <td width="11%"></td> | |
100 | <td width="2%"> | |
101 | ||
102 | <p><b>−r</b></p> | |
103 | </td> | |
104 | <td width="5%"></td> | |
105 | <td width="80%"> | |
106 | ||
107 | <p>Write data with a specified number of rows per strip; by | |
108 | default the number of rows/strip is selected so that each | |
109 | strip is approximately 8 kilobytes.</p> | |
110 | </td> | |
111 | <td width="0%"> | |
112 | </td> | |
113 | <tr valign="top" align="left"> | |
114 | <td width="11%"></td> | |
115 | <td width="2%"> | |
116 | ||
117 | <p><b>−b</b></p> | |
118 | </td> | |
119 | <td width="5%"></td> | |
120 | <td width="80%"> | |
121 | ||
122 | <p>Process the image one block (strip/tile) at a time | |
123 | instead of by reading the whole image into memory at once. | |
124 | This may be necessary for very large images on systems with | |
125 | limited RAM.</p> | |
126 | </td> | |
127 | <td width="0%"> | |
128 | </td> | |
129 | <tr valign="top" align="left"> | |
130 | <td width="11%"></td> | |
131 | <td width="2%"> | |
132 | ||
133 | <p><b>−n</b></p> | |
134 | </td> | |
135 | <td width="5%"></td> | |
136 | <td width="80%"> | |
137 | ||
138 | <p>Drop the alpha component from the output file, producing | |
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139 | a pure RGB file. Currently this does not work if the |
140 | <b>−b</b> flag is also in effect.</p> | |
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141 | </td> |
142 | <td width="0%"> | |
143 | </td> | |
144 | </table> | |
145 | <a name="SEE ALSO"></a> | |
146 | <h2>SEE ALSO</h2> | |
147 | <!-- INDENTATION --> | |
148 | <table width="100%" border=0 rules="none" frame="void" | |
149 | cols="2" cellspacing="0" cellpadding="0"> | |
150 | <tr valign="top" align="left"> | |
151 | <td width="8%"></td> | |
152 | <td width="91%"> | |
153 | <p><b>tiff2bw</b>(1), <b>TIFFReadRGBAImage</b>(3t), | |
154 | <b>libtiff</b>(3)</p> | |
155 | <!-- INDENTATION --> | |
156 | <p>Libtiff library home page: | |
157 | <b>http://www.remotesensing.org/libtiff/</b></p> | |
158 | </td> | |
159 | </table> | |
160 | <hr> | |
161 | </body> | |
162 | </html> |