NAME

       tiffsv - save an image from the framebuffer in a TIFF file (Silicon Graphics version)

SYNOPSIS

       tiffsv [ options ] output.tif [ x1 x2 y1 y2 ]

DESCRIPTION

       tiffsv  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 (PlanarConfiguration=1), compressed with the Lempel-
       Ziv  &  Welch  algorithm  (Compression=5),  and  with  each  strip  no  more  than  8  kilobytes.   These
       characteristics can be overridden, 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 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.  -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 separate 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(3TIFF) library.

SEE ALSO

       scrsave(6D) pal2rgb(1), tiffdump(1), tiffgt(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3TIFF)

       Libtiff library home page: http://www.remotesensing.org/libtiff/

libtiff                                        September 20, 2005                                      TIFFSV(1)