Fig. 2From: A robust spectral angle index for remotely assessing soybean canopy chlorophyll content in different growing stagesSoybean canopy hyperspectral measurements and corresponding broadband spectral. a Field-based soybean canopy hyperspectral measurements and b corresponding broadband spectral. c Unmanned aerial vehicle (UAV)-based soybean canopy hyperspectral measurements and d corresponding broadband spectralBack to article page