[GRASS-dev] RE: [GRASS-user] Errors applying color rules and -g flags in r.colors

[Hamish]

Patton, Eric wrote:
> I'm not familiar with what 'evi' or 'ndvi' mean and for what types of
> data they are best suited.


http://earthobservatory.nasa.gov/Library/MeasuringVegetation/

Normalized Difference Vegetation Index (NDVI)
Enhanced Vegetation Index (EVI)



Hamish