NAME

       hdftopal, paltohdf - convert between a palette in an HDF file and a raw palett e in a non-
       HDF file

SYNOPSIS

       hdftopal hdf-pallette-file raw-pallette-file
       paltohdf raw-pallette-file hdf-pallette-file

DESCRIPTION

       hdftopal converts a palette in an HDF file to a raw palette in an non-HDF  file.  The  raw
       palette  will  have  768 bytes with the first 256 bytes representing red intensity values,
       the second 256 bytes  representing  green  intensity  values,  and  the  third  256  bytes
       representing blue intensity values.

       paltohdf  performs  the  converse  conversion,  from  raw  palette data to the HDF palette
       format. The raw palette data must have 768 bytes organized in the following order:  first,
       256  contiguous red intensity values, then 256 contiguous green intensity values, then 256
       contiguous blue intensity values. The palette in the HDF file will  have  the  RGB  values
       pixel-interlaced, as follows:

       red-value green-value blue-value red-value green-value blue-value...

       This is the standard HDF format for 8-bit palettes.

       If  an  HDF  palette format file is specified that doesn't exist, it is created before the
       converted data is stored. If an HDF palette format file is specified that already  exists,
       the converted data is appended to the file.

SEE ALSO

       hdf(5)

                                         November 6, 1999                             HDFTOPAL(1)