Level 2 Help for PARSE

In the default method, one input is needed; the image to be split up.
In the REVERSE method, there needs to be one input file for each sensor
(if BY_SENSOR) or for each band (if BY_BAND).

In the default method, there needs to be one output file for each sensor
(if BY_SENSOR) or for each band (if BY_BAND).  In the REVERSE method, 
only one output is needed; the full image to be built.

COUNT is the number of sensors, i.e., the modulus.  For example, if COUNT=6,
the input image is split into six parts, and each output file contains every
sixth line (HORIZONTAL MODE) or every sixth sample (VERTICAL MODE).

In the HORIZONTAL (default) MODE, the input image is separated into its
component lines (rows).  In the VERTICAL MODE, the input image is separated
into its component samples (columns).  For the REVERSE method, this  is
used to indicate the contents of the input files

If the BY_BAND keyword is used, there will be one output file for each 
desired output band. Each output file will contain each of the desired
sensors as separate bands.

If the BY_SENSOR keyword is used, there will be one output file for each
desired sensor.

In the default (FORWARD) method, a single input is parsed into its components.
To rebuild the original image from those components, use the REVERSE keyword.

If this parameter is defaulted, all bands will be processed.  To process only
a subset of all bands, list the desired bands to process here.

If this parameter is defaulted, all sensors will be processed.  To process only
a subset of all sensors, list the desired sensors to process here.