Description of wheat kernel. Grain perimeter (GP); The length of the outside boundary of the selection. Grain length (GL); The longest length of the grain. Grain width (GW); The shortest length of the grain. Grain area (GA); Area of selection in square pixels or in calibrated square units. Aspect ratio (AR); The aspect ratio of the particle’s fitted ellipse. Grain circularity (GC); The degree of roundness of a circular hole.
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