Predicting the quality of ryegrass using hyperspectral imaging

a Raw HSI image (320 pixels per line by 400 lines per image) of the ryegrass blades (at 558, 740 and 937 nm wavelengths). The image was captured directly above the plant. b Raw HSI image of forage of the ryegrass pseudostems after harvesting the top half of the plant (at 558, 740 and 937 nm wavelengths). The image was captured directly above the plant. c Forage heat map of ryegrass at 1080 nm (red denotes high reflectance and blue denotes low reflectance). d Region of interest (ROI) for the ryegrass (white pixels