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11 <h1 align=center>TIFFSV</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="#NOTE">NOTE</a><br>
17 <a href="#BUGS">BUGS</a><br>
18 <a href="#SEE ALSO">SEE ALSO</a><br>
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29 <p>tiffsv − save an image from the framebuffer in a
30 <small>TIFF</small> file (Silicon Graphics version)</p>
33 <a name="SYNOPSIS"></a>
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41 <p><b>tiffsv</b> [ <i>options</i> ] <i>output.tif</i> [
42 <i>x1 x2 y1 y2</i> ]</p>
45 <a name="DESCRIPTION"></a>
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53 <p><i>tiffsv</i> saves all or part of the framebuffer in a
54 file using the Tag Image File Format, Revision 6.0. By
55 default, the image is saved with data samples packed
56 (<i>PlanarConfiguration</i>=1), compressed with the
57 Lempel-Ziv & Welch algorithm (<i>Compression</i>=5), and
58 with each strip no more than 8 kilobytes. These
59 characteristics can be overridden, or explicitly specified
60 with the options described below.</p>
63 <a name="OPTIONS"></a>
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72 <p><b>−b</b></p>
77 <p>Save the image as a greyscale image as if it were
78 processed by <i>tiff2bw</i>(1). This option is included for
79 compatibility with the standard <i>scrsave</i>(6D)
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88 <p><b>−c</b></p>
93 <p>Specify the compression to use for data written to the
94 output file: <b>none</b> for no compression, <b>packbits</b>
95 for PackBits compression, <b>jpeg</b> for baseline JPEG
96 compression, <b>zip</b> for Deflate compression, and
97 <b>lzw</b> for Lempel-Ziv & Welch compression
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109 <p><small>LZW</small> compression can be specified together
110 with a <i>predictor</i> value. A predictor value of 2 causes
111 each scanline of the output image to undergo horizontal
112 differencing before it is encoded; a value of 1 forces each
113 scanline to be encoded without differencing. LZW-specific
114 options are specified by appending a
115 ‘‘:’’-separated list to the
116 ‘‘lzw’’ option; e.g. <b>−c
117 lzw:2</b> for <small>LZW</small> compression with horizontal
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128 <p><b>−p</b></p>
133 <p>Specify the planar configuration to use in writing image
134 data. By default, <i>tiffsv</i> will create a new file with
135 the data samples packed contiguously. Specifying <b>−p
136 contig</b> will force data to be written with multi-sample
137 data packed together, while <b>−p separate</b> will
138 force samples to be written in separate planes.</p>
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143 <td width="10%"></td>
146 <p><b>−r</b></p>
151 <p>Specify the number of rows (scanlines) in each strip of
152 data written to the output file. By default, <i>tiffsv</i>
153 attempts to set the rows/strip that no more than 8 kilobytes
154 of data appear in a strip.</p>
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167 <p>Except for the use of <small>TIFF,</small> this program
168 is equivalent to the standard <i>scrsave</i> program. This
169 means, for example, that you can use it in conjunction with
170 the standard <i>icut</i> program simply by creating a link
171 called <i>scrsave</i>, or by creating a shell script called
172 <i>scrsave</i> that invokes <i>tiffgt</i> with the
173 appropriate options.</p>
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184 <p>If data are saved compressed and in separate planes, then
185 the rows in each strip is silently set to one to avoid
186 limitations in the <b>libtiff</b>(3TIFF) library.</p>
189 <a name="SEE ALSO"></a>
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197 <p><b>scrsave</b>(6D) <b>pal2rgb</b>(1), <b>tiffdump</b>(1),
198 <b>tiffgt</b>(1), <b>tiffinfo</b>(1), <b>tiffcp</b>(1),
199 <b>tiffmedian</b>(1), <b>libtiff</b>(3TIFF)</p>
201 <p>Libtiff library home page:
202 <b>http://www.remotesensing.org/libtiff/</b></p>