[-f< input format >] [-F< output format >]
      [-x< x size >] [-y< y size >] [-z< z size >]
      [-o< output file >] [< input file >)]
      Converts image objects between one file format and another,
      neither of which need be the Woolz data file format.
      Options are:
      -h Help, prints this usage information.
      -s Split labeled volumes into domains.
      -b# Set background to vale,
      -f# Input file format.
      -F# Ouput file format.
      -o# Output file name.
      -x# X voxel/pixel size.
      -y# Y voxel/pixel size.
      -z# Z voxel/pixel size.
      Simple example:
      WlzExtFFConvert -f wlz -F slc < in.wlz >out.slc
      Converts the Woolz object in.wlz to an SLC data file out.slx
      More complex example:
      WlzExtFFConvert -f den -F pnm -o out.pgm in.den
      Converts the Stanford density file in.den to a series of PGM files
      each with a name of the form out000001.pgm where the number
      encodes the image plane and a control file which specifies the
      volume origin, size and voxel dimensions.
      By default objects are read from the standard input and written to
      the standard output.
      File formats which use more than one file can not be read or written
      using the standard input or standard output.
      The Tiff file format must be read/written from/to a file i.e. not
      from/to stdin or stdout