|
1 <!-- Creator : groff version 1.18.1 --> |
|
2 <!-- CreationDate: Mon Mar 13 18:03:13 2006 --> |
|
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%"> |
|
39 <p><b>tiff2rgba</b> [ options ] <i>input.tif |
|
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 |
|
66 samples per pixel (red, green, blue and alpha) or if the -n |
|
67 flag is used, three samples per pixel (red, green, and |
|
68 blue). The resulting images are always planar configuration |
|
69 contiguous. For this reason, this program is a useful |
|
70 utility for transform exotic TIFF files into a form |
|
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), |
|
90 <b>-c packbits</b> for the PackBits compression algorithm, |
|
91 <b>-c zip</b> for the Deflate compression algorithm, <b>-c |
|
92 jpeg</b> for the JPEG compression algorithm, and <b>−c |
|
93 lzw</b> for Lempel-Ziv & Welch.</p> |
|
94 </td> |
|
95 <td width="0%"> |
|
96 </td> |
|
97 <tr valign="top" align="left"> |
|
98 <td width="11%"></td> |
|
99 <td width="2%"> |
|
100 |
|
101 <p><b>−r</b></p> |
|
102 </td> |
|
103 <td width="5%"></td> |
|
104 <td width="80%"> |
|
105 |
|
106 <p>Write data with a specified number of rows per strip; by |
|
107 default the number of rows/strip is selected so that each |
|
108 strip is approximately 8 kilobytes.</p> |
|
109 </td> |
|
110 <td width="0%"> |
|
111 </td> |
|
112 <tr valign="top" align="left"> |
|
113 <td width="11%"></td> |
|
114 <td width="2%"> |
|
115 |
|
116 <p><b>−b</b></p> |
|
117 </td> |
|
118 <td width="5%"></td> |
|
119 <td width="80%"> |
|
120 |
|
121 <p>Process the image one block (strip/tile) at a time |
|
122 instead of by reading the whole image into memory at once. |
|
123 This may be necessary for very large images on systems with |
|
124 limited RAM.</p> |
|
125 </td> |
|
126 <td width="0%"> |
|
127 </td> |
|
128 <tr valign="top" align="left"> |
|
129 <td width="11%"></td> |
|
130 <td width="2%"> |
|
131 |
|
132 <p><b>−n</b></p> |
|
133 </td> |
|
134 <td width="5%"></td> |
|
135 <td width="80%"> |
|
136 |
|
137 <p>Drop the alpha component from the output file, producing |
|
138 a pure RGB file. Currently this does not work if the -b flag |
|
139 is also in effect.</p> |
|
140 </td> |
|
141 <td width="0%"> |
|
142 </td> |
|
143 </table> |
|
144 <a name="SEE ALSO"></a> |
|
145 <h2>SEE ALSO</h2> |
|
146 <!-- INDENTATION --> |
|
147 <table width="100%" border=0 rules="none" frame="void" |
|
148 cols="2" cellspacing="0" cellpadding="0"> |
|
149 <tr valign="top" align="left"> |
|
150 <td width="8%"></td> |
|
151 <td width="91%"> |
|
152 <p><b>tiff2bw</b>(1), <b>TIFFReadRGBAImage</b>(3t), |
|
153 <b>libtiff</b>(3)</p> |
|
154 <!-- INDENTATION --> |
|
155 <p>Libtiff library home page: |
|
156 <b>http://www.remotesensing.org/libtiff/</b></p> |
|
157 </td> |
|
158 </table> |
|
159 <hr> |
|
160 </body> |
|
161 </html> |