pal2rgb - convert a palette color TIFF image to a full color image
pal2rgb [
options ]
input.tif output.tif
pal2rgb converts a palette color 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 that affect the interpretation of input data are:
- -C numentries
- 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 planarconfig
- 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 compress
- Use the specified 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 striprows
- 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.
Only 8-bit images are handled.
tiffinfo (1),
tiffcp (1),
tiffmedian (1),
libtiff
(3tiff)
LibTIFF contributors
1988-2023, LibTIFF contributors