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Isis 2 Documentation


plancd Documentation

plancd - Read JPL archive CD files and write to disk
PLANCD reads a CD-ROM file containing image files in the JPL
(Jet Propulsion Laboratory) VICAR (Video Image Communication And
Retrieval) label format as defined in JPL PUBLICATION 85-50.  These
CD-ROMs were created from archive tapes containing VOYAGER, VIKING,
MARINER9 and MARINER10 images.  The input file may come either
directly from the CD-ROM or a disk file that was copied from the
CD-ROM.  PLANCD produces ISIS image labels and writes labels and image
to an ISIS cube file.  PLANCD is designed to read archive CD's of
VOYAGER, VIKING, MARINER 9 and 10 missions.

VIKING images have a special processing "feature".  It was discovered
that when VIKING images were being written to tape and a dropped line
was encountered, the dropped image line was inadvertently replaced with
the 16th previous image line.  PLANCD incorporates an algorithm to
drop these lines and replace them with NULL values.  As a result, dark
lines will appear across the width of the image.  The lines may be
filled by applying a combination of filters to the image.  PLANCD will
list the number of lines dropped at the end of the program, and the
session log file will contain a line by line account of lines that are
dropped.  This process is only used if MISSION=VIKING.

Programmer:  Tracie Sucharski, U.S.G.S., Flagstaff, AZ

ParmDescriptionDefault
FROM
Input CD-ROM file
NONE
CDID
CD-ROM number or ID name
NONE
TO
Output cube file name
  (default extension is .cub)
NONE
MISSION
Mission name
NONE
OTYPE
Output pixel type
--
USERNOTE
User comment
" "

ADDITIONAL NOTES:

ParmDescription
FROM
CD-ROM file which is being read from the CD-ROM or a disk
file which was copied from the CD-ROM+.
CDID
Identification name or number for the CD-ROM.  CDID value
cannot exceed 16 characters in length.  The CDID is simply
listed in the session log file.  PLANCD does not check the
validity of the CDID.
TO
Output cube file name.  If the file extension is omitted,
then ".cub" will be assumed.
MISSION
The mission from which the data is collected.  There are
only four missions that PLANCD will process at this time.
They are:
      			VIKING
      			VOYAGER
      			MARINER9
  			MARINER10.
Each of these missions has been archived by JPL to a 6250
bpi tape library.  Each mission has its own tape format.
Each image for the missions is stored in an output
format called VICAR standard format experiment data record
(VSFEDR).  These tapes were then archived on CD-ROM.  The
VICAR format was developed by JPL's image processing
laboratory.  See JPL publication 85-50 for more information.
OTYPE
Output pixel data type.  Permitted values are:

    NULL - output type is same as input file pixel type
    1 - 8-bit (integer with type conversion parameters)
    2 - 16-bit (integer with type conversion parameters)
    3 - 32-bit (floating point)

USERNOTE
Comment from the user.  This will be recorded in the ISIS
session log file and also in the History entry that is put
into the History object of the output file.

Last updated: Jan 31 2005
File: pdfs2.html

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