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A spot-type defect detection and colour identification system for agricultural produce

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3 Author(s)
C. A. Gunawardena ; Dept. of Electron. Syst. Eng., Essex Univ., Colchester, UK ; L. J. Clark ; T. J. Dennis

A high-speed system in which color detection is one aspect of an overall quality inspection process for agricultural produce is undergoing development. In a typical application, the system can sort and route tomatoes to many output grades according to their ripeness and size. A CCD (charge-coupled device) color television camera inspects the produce passing on a conveyor of rotating rollers. Color quality is determined by using a three-dimensional lookup table to identify spatial areas which contain a color of interest. The lookup table defines 262, 132 unique colors. Special spot-type defect detection algorithms have been developed to distinguish between diffused color which is spread throughout the entire surface area of an object and color clusters which are concentrated in a much smaller area

Published in:

Industrial Electronics, Control and Instrumentation, 1991. Proceedings. IECON '91., 1991 International Conference on

Date of Conference:

28 Oct-1 Nov 1991