LUTFIL

     LUTFIL specifies a lookup table file name used to enhance the colors for
     satellite or radar images. Color enhancement allows certain features in a
     satellite or radar image to be highlighted. 

     Keywords may be specified for LUTFIL with the following definitions:

	LUTFIL = DEFAULT	(Use the color enhancement specified for this
				 image type in the table IMGTYP.TBL)
	LUTFIL = 		(Same as DEFAULT)
	LUTFIL = GRAY		(Image gray values, no enhancement)
	LUTFIL = GREY		(Image gray values, no enhancement)
	LUTFIL = RADAR		(Standard radar colors for reflectivity)
	LUTFIL = NONE		(Use the current look up table with no changes)