bionic (1) r8tohdf.1.gz

NAME

       r8tohdf - convert 8-bit raster images to HDF format

SYNOPSIS

       r8tohdf [number-of-rows number-of-columns] output-filename [-p palette-filename] [-c] [-r] [-i] raw-
              raster-image-filename-1, raw-raster-image-filename-2, ...

DESCRIPTION

       r8tohdf converts a set of raw raster images to the HDF RIS8 format and writes them to a file.

OPTIONS

       -p pallette-file
              Specify the name of the palette file.

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

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

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

EXAMPLES

       A file named "rawras" contains a 256 x 512-byte raw raster image, and its palette is  stored  in  a  file
       name "mypal". To convert the information in these files to an RIS8 without compression and store the RIS8
       in a file named "ras.hdf", enter the following r8tohdf command:

         r8tohdf 256 512 ras.hdf -p mypal rawras

       A 800 x 1000-byte raw raster image is stored in a file named "bigpic".  This data must be converted to  a
       RIS8  without  a  palette,  compressing  it  using  run-length  encoding,  then  stored  in  a file named
       "bigpic.hdf". The following command will do this:

         r8tohdf 800 1000 bigpic.hdf -c bigpic

       A 300 x 400 raw raster image is contained in each of the files  named  "pic1",  "pic2",  and  "pic3".  To
       convert  all  three files to RIS8s, compress them using the IMCOMP method, and store them in a file named
       "pic.hdf", enter

         r8tohdf 300 400 pic.hdf -i pic1 pic2 pic3

       Different types of raster image data are to be stored in a file named "ras.hdf". The image  data  in  the
       file "rawras1" will be stored without a palette. The image data sets from the file named "rawras2" are to
       be stored with a palette extracted from a file named "mypal". The images from the "rawras1" and "rawras2"
       files  are  to  be compressed using run-length encoding, and the image in the "rawras3" file is not to be
       compressed. The size of all images are 256 x 512 bytes. The following command is used to do this:

         r8tohdf 256 512 ras.hdf -c rawras1 -p mypal rawras2 -r rawras3

SEE ALSO

       hdftor8(1), hdf(5)

                                                November 6, 1999                                      R8TOHDF(1)