Fractional cover from NDVI

Discussion created by resat10 on Nov 2, 2017
Latest reply on Nov 2, 2017 by xander_bakker


I trying to calculate fractional vegetation cover from NDVI. I calculated NDVI but I don't know how can I extract NDVI soil or NDVI veg from my NDVI map to use formula. 


Fc=(NDVI—NDVI soil)/(NDVI veg—NDVI soil)


Thank you.