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RAS2TIFF

NAME

SYNOPSIS

DESCRIPTION

OPTIONS

BUGS

SEE ALSO

NAME

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ras2tiff − create a <small>TIFF</small> file from a

Sun rasterfile

SYNOPSIS

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ras2tiff [ options ] input.ras

output.tif

DESCRIPTION

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ras2tiff converts a file in the Sun rasterfile

format to <small>TIFF.</small> By default, the

<small>TIFF</small> 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 <small>TIFF</small> 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

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−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

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Does not handle all possible rasterfiles. In particular,

ras2tiff does not handle run-length encoded

images.

SEE ALSO

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pal2rgb(1), tiffinfo(1), tiffcp(1),

tiffmedian(1), libtiff(3)

Libtiff library home page:

http://www.remotesensing.org/libtiff/