                       IMAGE ENHANCEMENT

GRASS programs can be used to enhance or subdue certain data values
in order to make more evident certain features or qualities of digital
imagery.  Following is a list of GRASS programs which can be used in
the image enhancement process:    

	\-  i.colors \
	\-  i.composite \
	\-  i.grey.scale \
	\-  i.his.rgb \
	\-  i.median \
	\-  i.rgb.his \
	\-  r.mapcalc \

For more information on a specific command, select a command and press
ESC.












