RAS2TIFF

Section: User Commands (1)
Updated: May 2, 1989
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NAME

ras2tiff - create a TIFF file from a Sun rasterfile

SYNOPSIS

ras2tiff [ -none ] [ -packbits ] [ -lzw ] [ -rowsperstrip n ] rasterfile tiff-file

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 overriden, or explicitly specified with the following options: -none (use no compression), -packbits (use the PackBits compression algorithm), -lzw (use Lempel-Ziv & Welch - default), -rowsperstrip n (pack n rows in each strip). 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.

BUGS

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