Klapp, I., Department of Sensing, Information and Mechanization Engineering, Institute of Agricultural Engineering, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel
Sapir, O., Department of Sensing, Information and Mechanization Engineering, Institute of Agricultural Engineering, Agricultural Research Organization, Volcani Center, Bet Dagan, Israel, Department of Mathematics, Tel Aviv University, Tel Aviv, Israel
Niv, A., The Israel Cotton Board Ltd., PoX 834, Herzeliya, Israel
Axelrod, M., The Israel Cotton Board Ltd., PoX 834, Herzeliya, Israel
Sochen, N., Department of Mathematics, Tel Aviv University, Tel Aviv, Israel

A method that takes into consideration the influence of imaging-system blur on the local-intensity histogram enables recognizing mealybug clusters covering only a few pixels in cotton field images taken from a drone.