PAL2RGB

Section: User Commands (1)
Updated: May 18, 1991
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NAME

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

SYNOPSIS

pal2rgb [ -none ] [ -packbits ] [ -lzw ] [ -contig ] [ -separate ] [ -8bit ] [ -16bit ] [ -rowsperstrip n ] from-file to-file

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. By default, pal2rgb inspects the colormap values and assumes either 16-bit or 8-bit values according to the maximum value. That is, if no colormap entry greater than 255 is found, pal2rgb assumes the colormap has only 8-bit values; otherwise it assumes 16-bit values (as required by the TIFF specification). To force the colormap to be treated as having 8-bit or 16-bit values, the -8bit or -16bit flag may be specified, respectively.

The output image can be compressed with one of the compression algorithms supported by libtiff: -packbits for Macintosh Packbits, -lzw for Lempel-Ziv & Welch, -none for no compression. If no compression-related option is specified, the input file's compression algorithm is used.

As for tiffcp(1), the TIFF directory information of the input image is copied through to the output image. The -contig, -separate, and -rowsperstrip options may be used to control the data organization of the output image.

BUGS

Only 8-bit images are handled.