These indices make use of the general remote sensing principle that plant canopy absorbs much of the radiation in the visible wavelengths and reflects more in the infrared (Lillesand and Kiefer, 1994).
These indices make use of the general remote sensing principle thatplant canopy absorbs much of the radiation in the visible wavelengths and reflects more in theinfrared (Lillesand and Kiefer, 1994).