NAME¶
pal2rgb - convert a palette color
TIFF image to a full color
image
SYNOPSIS¶
pal2rgb [
options ]
input.tif output.tif
DESCRIPTION¶
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.
OPTIONS¶
Options that affect the interpretation of input data are:
- -C
- 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.
Options that affect the output file format are:
- -p
- 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.
- -c
- 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.
- -r
- 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.
BUGS¶
Only 8-bit images are handled.
SEE ALSO¶
tiffinfo(1),
tiffcp(1),
tiffmedian(1),
libtiff(3)
Libtiff library home page:
http://www.remotesensing.org/libtiff/