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/