Fig. 3From: A real-time phenotyping framework using machine learning for plant stress severity rating in soybeanFeature extraction from plant canopies (top image) for iron deficiency chlorosis. The bottom left figure represents those regions in the canopy that are yellow in color, and the bottom right figure represents those regions in the canopy that are brown in color. The percentage spread of yellow and brown color are then taken as the two featuresBack to article page