PAL2RGB

pal2rgb ? convert a palette color TIFF image to a full color image

pal2rgb [ options ] input.tif output.tif

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 that affect the interpretation of input data are:

?C

This option overrides the default behaviour 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.

Only 8-bit images are handled.

tiffinfo(1), tiffcp(1), tiffmedian(1), libtiff(3)