Enhancement Tables
Satellite enhancements can be used in Gempak programs
as well as NSAT. Enhancement tables are found under
the directory $GEMTBL/luts.
Several predefined color tables
are provided with the Gempak distribution, and can be used
within Gempak programs by specifying:
LUT enhancement.tbl
at the program prompt after the display is generated.
The default enhancement used for each image type is
defined in the file IMGTYP.TBL.
To select a different default enhancement for a
given satellite image, simply enter a new enhancement
name under the DEFAULT LUT FILE column.
Adding New Enhancement Tables
If you want to add new enhancement tables of your own,
be sure to follow the format of one of the existing files.
Location of RGB values is dependent on column location.
When new enhancements are created, you will need to
add the name to the
$NAWIPS/tables/nsat/enhance.tbl
file so that they will be available
in the NSAT enhancements pulldown menu.
Note, the enhancement names must end with the .tbl extension.
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