ras2tiff
create a TIFF file from a Sun rasterfile
see also :
pal2rgb - tiffinfo - tiffcp - tiffmedian
Synopsis
ras2tiff
[ options ] input.ras output.tif
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examples
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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 ,
tiffinfo , tiffcp , tiffmedian ,
libtiff
Libtiff library
home page: http://www.remotesensing.org/libtiff/