MORPHOLOGICAL ORDERED GRAY-SCALE EROSION FOR OPTICAL-IMAGE PROCESSING

An ordered gray-scale erosion is suggested according to the definition of hit-miss transform. Instead of using three operations, two images, and two structuring elements, the developed operation requires only o ne operation and one structuring element, but with three gray-scale le vels. Therefore, a union of the ordered gray-scale erosions with diffe rent structuring elements can constitute a simple image algebra to pro gram any combined image processing function. An optical parallel order ed gray-scale erosion processor is developed based on the incoherent c orrelation in a single channel. Experimental results are also given fo r an edge detection and a pattern recognition. (C) 1998 Society of Pho to-Optical Instrumentation Engineers. [S0091-3286(98)00306-7].