TIFFSV(1)TIFFSV(1)NAMEtiffsv - save an image from the framebuffer in a TIFF file
(Silicon Graphics version)
SYNOPSIStiffsv [ options ] output.tif [ x1 x2 y1 y2 ]
DESCRIPTIONtiffsv 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 (Pla_
narConfiguration=1), compressed with the Lempel-Ziv &
Welch algorithm (Compression=5), and with each strip no
more than 8 kilobytes. These characteristics can be over
riden, or explicitly specified with the options described
below.
OPTIONS-b Save the image as a greyscale image as if it were
processed by tiff2bw(1). This option is included
for compatibility with the standard scrsave(6D)
program.
-c Specify the compression to use for data written to
the output file: none for no compression, packbits
for PackBits compression, jpeg for baseline JPEG
compression, zip for Deflate compression, and lzw
for Lempel-Ziv & Welch compression (default).
LZW compression can be specified together with a
predictor value. A predictor value of 2 causes
each scanline of the output image to undergo hori
zontal 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. -c lzw:2 for LZW compression with
horizontal differencing.
-p Specify the planar configuration to use in writing
image data. By default, tiffsv will create a new
file with the data samples packed contiguously.
Specifying -p contig will force data to be written
with multi-sample data packed together, while -p
separate will force samples to be written in sepa
rate planes.
-r Specify the number of rows (scanlines) in each
strip of data written to the output file. By
default, tiffsv attempts to set the rows/strip that
no more than 8 kilobytes of data appear in a strip.
NOTE
Except for the use of TIFF, this program is equivalent to
the standard scrsave program. This means, for example,
that you can use it in conjunction with the standard icut
program simply by creating a link called scrsave, or by
creating a shell script called scrsave that invokes tiffgt
with the appropriate options.
BUGS
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 libtiff(3) library.
SEE ALSOscrsave(6D)pal2rgb(1), tiffdump(1), tiffgt(1),
tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)
October 15, 1995 TIFFSV(1)
