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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=
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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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107 <td width=
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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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125 <td width=
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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=
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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>