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PAL2RGB
PAL2RGB
NAME
SYNOPSIS
DESCRIPTION
OPTIONS
BUGS
SEE ALSO
NAME
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pal2rgb − convert a palette color
TIFF image to a full color image
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SYNOPSIS
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pal2rgb [ options ] input.tif
output.tif
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DESCRIPTION
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Pal2rgb converts a palette color
TIFF image to a full color image by applying
the colormap of the palette image to each sample to generate
a full color RGB image.
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OPTIONS
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Options that affect the interpretation of input data
are:
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−C
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This option overrides the default behavior of
pal2rgb in determining whether or not colormap
entries contain 16-bit or 8-bit values. By default the
colormap is inspected and if no colormap entry greater than
255 is found, the colormap is assumed to have only 8-bit
values; otherwise 16-bit values (as required by the
TIFF specification) are assumed. The
−C option can be used to explicitly specify the
number of bits for colormap entries: −C 8 for
8-bit values, −C 16 for 16-bit values.
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Options that affect the output file format are:
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−p
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Explicitly select the planar configuration used in
organizing data samples in the output image: −p
contig for samples packed contiguously, and −p
separate for samples stored separately. By default
samples are packed.
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−c
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Use the specific compression algorithm to encoded image
data in the output file: −c packbits for
Macintosh Packbits, −c lzw for Lempel-Ziv &
Welch, −c zip for Deflate, −c none
for no compression. If no compression-related option is
specified, the input file’s compression algorithm is
used.
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−r
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Explicitly specify the number of rows in each strip of
the output file. If the −r option is not
specified, a number is selected such that each output strip
has approximately 8 kilobytes of data in it.
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BUGS
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Only 8-bit images are handled.
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SEE ALSO
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tiffinfo(1), tiffcp(1),
tiffmedian(1), libtiff(3)
Libtiff library home page:
http://www.simplesystems.org/libtiff/
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