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NAME

       hdfcomp - compress 8-bit raster images in an HDF file

SYNOPSIS

       hdfcomp output-filename [-c|-r|-i] input-filename-1 [-c|-r|-i] input-
              filename-2...

DESCRIPTION

       hdfcomp reads RIS8 images from a set of HDF files, compresses them  and
       stores  the  compressed  data  in a second HDF file.  If the output HDF
       file exists, the compressed images will be appended to it.

OPTIONS

       -r     No Compression.  Apply no compression to the output  data.  (the
              default).

       -c     Run  length  coding.   Compress the output data using run-length
              encoding.

       -i     IMCOMP Compression.  Compress the output data using  the  IMCOMP
              method.

EXAMPLES

       A  directory  contains  twenty  files named "storm001", "storm002", ...
       "storm020". Each of these  files  contains  a  single  RIS8  image.  To
       compress  these  images  using  run-length encoding and store them in a
       file named "altcomp.hdf", use the following hdfcomp command:

               hdfcomp allcomp.hdf -c storm*.hdf

SEE ALSO

       hdfpack(1), hdf(5)

                               November 6, 1999