Unidata - To provide the data services, tools, and cyberinfrastructure leadership that advance Earth system science, enhance educational opportunities, and broaden participation. Unidata
    •      
  advanced  
 
Previous: Map Database Reference Next: VERTICAL COORDINATES Table of contents Frames User Manual GEMPAK Online Tutorial

23 Color Enhancements

Enhancement Tables

Satellite and radar imagery 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, and can be used within GEMPAK programs by using the LUTFIL variable.

Additionally, the enhancement can be changed after a mapping program has been run with the look up table command at the program prompt, ie:

LUT enhancement.tbl

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.

 


Previous: Map Database Reference Next: VERTICAL COORDINATES Table of contents Frames User Manual GEMPAK Online Tutorial

 
 
  Contact Us   •   Site Map   •   Search   •   Terms and Conditions   •   Privacy Policy   •   Participation Policy
 
National Science Foundation (NSF) UCAR Office of Programs University Corporation for Atmospheric Research (UCAR)   Unidata is a member of the UCAR Office of Programs, is managed by the University Corporation for Atmospheric Research, and is sponsored by the National Science Foundation.
P.O. Box 3000   •   Boulder, CO 80307-3000 USA   •   Tel: 303-497-8643   •   Fax: 303-497-8690