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),
(3)
Libtiff library home page: