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)