libtiff/html/man/tiffsv.1.html
1999-11-23 04:29:23 +00:00

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<HTML><HEAD><TITLE>Manpage of TIFFSV</TITLE>
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<H1>TIFFSV</H1>
Section: User Commands (1)<BR>Updated: October 15, 1995<BR><A HREF="#index">Index</A>
<BR><A HREF="index.html">Return to Main Contents</A>
<HR>
<A NAME="lbAB">&nbsp;</A>
<H2>NAME</H2>
tiffsv - save an image from the framebuffer in a
<FONT SIZE="-1">TIFF</FONT>
file (Silicon Graphics version)
<A NAME="lbAC">&nbsp;</A>
<H2>SYNOPSIS</H2>
<B>tiffsv</B>
[
<I>options</I>
]
<I>output.tif</I>
[
<I>x1 x2 y1 y2</I>
]
<A NAME="lbAD">&nbsp;</A>
<H2>DESCRIPTION</H2>
<I>tiffsv</I>
saves all or part of the framebuffer in a file using the
Tag Image File Format, Revision 6.0.
By default, the image is saved with data samples packed (<I>PlanarConfiguration</I>=1),
compressed with the Lempel-Ziv &amp; Welch algorithm (<I>Compression</I>=5),
and with each strip no more than 8 kilobytes.
These characteristics can be overriden, or explicitly specified
with the options described below.
<A NAME="lbAE">&nbsp;</A>
<H2>OPTIONS</H2>
<DL COMPACT>
<DT><B>-b</B>
<DD>
Save the image as a greyscale image
as if it were processed by
<I><A HREF="tiff2bw+1.html">tiff2bw</A></I>(1).
This option is included for compatibility with the standard
<I><A HREF="scrsave+6d">scrsave</A></I>(6D)
program.
<DT><B>-c</B>
<DD>
Specify the compression to use for data written to the output file:
<B>none </B>
for no compression,
<B>packbits</B>
for PackBits compression,
<B>jpeg</B>
for baseline JPEG compression,
<B>zip</B>
for Deflate compression,
and
<B>lzw</B>
for Lempel-Ziv &amp; Welch compression (default).
<DT><DD>
<FONT SIZE="-1">LZW</FONT>
compression can be specified together with a
<I>predictor</I>
value.
A predictor value of 2 causes
each scanline of the output image to undergo horizontal
differencing before it is encoded; a value
of 1 forces each scanline to be encoded without differencing.
LZW-specific options are specified by appending a ``:''-separated
list to the ``lzw'' option; e.g.
<B>-c lzw:2</B>
for
<FONT SIZE="-1">LZW</FONT>
compression with horizontal differencing.
<DT><B>-p</B>
<DD>
Specify the planar configuration to use in writing image data.
By default,
<I>tiffsv</I>
will create a new file with the data samples packed contiguously.
Specifying
<B>-p contig</B>
will force data to be written with multi-sample data packed
together, while
<B>-p separate</B>
will force samples to be written in separate planes.
<DT><B>-r</B>
<DD>
Specify the number of rows (scanlines) in each strip of data
written to the output file.
By default,
<I>tiffsv</I>
attempts to set the rows/strip
that no more than 8 kilobytes of data appear in a strip.
</DL>
<A NAME="lbAF">&nbsp;</A>
<H2>NOTE</H2>
Except for the use of
<FONT SIZE="-1">TIFF,</FONT>
this program is equivalent to the standard
<I>scrsave</I>
program.
This means, for example, that you can use it in conjunction with
the standard
<I>icut</I>
program simply by creating a link called
<I>scrsave</I>,
or by creating a shell script called
<I>scrsave</I>
that invokes
<I>tiffgt</I>
with the appropriate options.
<A NAME="lbAG">&nbsp;</A>
<H2>BUGS</H2>
If data are saved compressed and in separate planes, then the
rows in each strip is silently set to one to avoid limitations
in the
<I><A HREF="libtiff+3">libtiff</A></I>(3)
library.
<A NAME="lbAH">&nbsp;</A>
<H2>SEE ALSO</H2>
<I><A HREF="scrsave+6d">scrsave</A></I>(6D)
<I><A HREF="pal2rgb+1.html">pal2rgb</A></I>(1),
<I><A HREF="tiffdump+1.html">tiffdump</A></I>(1),
<I><A HREF="tiffgt+1.html">tiffgt</A></I>(1),
<I><A HREF="tiffinfo+1.html">tiffinfo</A></I>(1),
<I><A HREF="tiffcp+1.html">tiffcp</A></I>(1),
<I><A HREF="tiffmedian+1.html">tiffmedian</A></I>(1),
<I><A HREF="libtiff+3">libtiff</A></I>(3)
<HR>
<A NAME="index">&nbsp;</A><H2>Index</H2>
<DL>
<DT><A HREF="#lbAB">NAME</A><DD>
<DT><A HREF="#lbAC">SYNOPSIS</A><DD>
<DT><A HREF="#lbAD">DESCRIPTION</A><DD>
<DT><A HREF="#lbAE">OPTIONS</A><DD>
<DT><A HREF="#lbAF">NOTE</A><DD>
<DT><A HREF="#lbAG">BUGS</A><DD>
<DT><A HREF="#lbAH">SEE ALSO</A><DD>
</DL>
<HR>
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Time: 01:31:48 GMT, November 23, 1999
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