The watershed is a complex but very powerful morphological operation that is often used in image segmentation. It involves the iterative use of the skeleton by influence zones (SKIZ). In this paper a parallel algorithm for the determination of the SKIZ is presented. The proposed algorithm can be efficiently implemented on an optoelectronic array processor. The optoelectronic processor is constructed via multilevel, high-speed, fiber-optic programmable logic arrays.
New optical implementations of single and multichannel symbolic substitution systems are proposed. The systems are fully programmable, can be used with large patterns and are capable of processing large input images at relatively high speeds. Configuration and structure for a variety of morphological transformations such as erosion, dilation, opening, closing and skeletonization are detailed. Simulation results are presented.
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