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# Conflicts:
# tools/unsupported/CMakeLists.txt
# tools/unsupported/tif_tools-unsupported_versioninfo.rc
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81 lines
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pal2rgb
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=======
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.. program:: pal2rgb
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Synopsis
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--------
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**pal2rgb** [ *options* ] *input.tif* *output.tif*
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Description
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-----------
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:program:`pal2rgb` converts a palette color image to a full color image by
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applying the colormap of the palette image to each sample to generate a full color
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RGB image.
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Options
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-------
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Options that affect the interpretation of input data are:
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.. option:: -C numentries
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This option overrides the default behavior of :program:`pal2rgb`
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in determining whether or not
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colormap entries contain 16-bit or 8-bit values.
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By default the colormap is inspected and
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if no colormap entry greater than 255 is found,
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the colormap is assumed to have only 8-bit values; otherwise
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16-bit values (as required by the TIFF
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specification) are assumed.
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The
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:option:`-C`
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option can be used to explicitly specify the number of
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bits for colormap entries:
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:command:`-C 8` for 8-bit values,
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:command:`-C 16` for 16-bit values.
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Options that affect the output file format are:
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.. option:: -p planarconfig
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Explicitly select the planar configuration used in organizing
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data samples in the output image:
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:command:`-p contig` for samples packed contiguously, and
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:command:`-p separate` for samples stored separately.
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By default samples are packed.
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.. option:: -c compress
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Use the specified compression algorithm to encoded image data
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in the output file:
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:command:`-c packbits` for Macintosh Packbits,
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:command:`-c lzw` for Lempel-Ziv & Welch,
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:command:`-c zip` for Deflate,
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:command:`-c none`
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for no compression.
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If no compression-related option is specified, the input
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file's compression algorithm is used.
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.. option:: -r striprows
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Explicitly specify the number of rows in each strip of the
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output file. If the :option:`-r`
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option is not specified, a number is selected such that each
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output strip has approximately 8 kilobytes of data in it.
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Bugs
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----
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Only 8-bit images are handled.
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See also
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--------
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:doc:`tiffinfo` (1),
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:doc:`tiffcp` (1),
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:doc:`tiffmedian` (1),
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:doc:`/functions/libtiff` (3tiff)
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