NAME

       ras2tiff - create a TIFF file from a Sun rasterfile

SYNOPSIS

       ras2tiff [ options ] input.ras output.tif

DESCRIPTION

       ras2tiff converts a file in the Sun rasterfile format to TIFF.  By default, the TIFF image
       is created 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 overridden, or explicitly specified with the  options  described
       below.

       Any colormap information in the rasterfile is carried over to the TIFF file by including a
       Colormap  tag  in  the  output  file.    If   the   rasterfile   has   a   colormap,   the
       PhotometricInterpretation tag is set to 3 (palette); otherwise it is set to 2 (RGB) if the
       depth is 24 or 1 (min-is-black) if the depth is not 24.

OPTIONS

       -c     Specify a compression scheme to use  when  writing  image  data:  -c  none  for  no
              compression,  -c  packbits  for the PackBits compression algorithm, -c jpeg for the
              baseline JPEG compression algorithm, -c zip for the Deflate compression  algorithm,
              and -c lzw for Lempel-Ziv & Welch (the default).

       -r     Write  data  with  a  specified  number of rows per strip; by default the number of
              rows/strip is selected so that each strip is approximately 8 kilobytes.

BUGS

       Does not handle all possible rasterfiles.  In particular, ras2tiff does  not  handle  run-
       length encoded images.

SEE ALSO

       pal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)

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