RAS2TIFF(1)RAS2TIFF(1)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 (PlanarCon‐
figuration=1), compressed with the Lempel-Ziv & Welch algorithm (Com‐
pression=5), and with each strip no more than 8 kilobytes. These char‐
acteristics 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 (pal‐
ette); 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 compres‐
sion algorithm, -c jpeg for the baseline JPEG compression algo‐
rithm, -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 ALSOpal2rgb(1), tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)
Libtiff library home page: http://www.remotesensing.org/libtiff/
libtiff November 2, 2005 RAS2TIFF(1)
