Takumi MINEMOTO, Ohki KIM and Hajime HIRATSUKA

Department of Instrumentation Engineering, Faculty of Engineering, Kobe University, Rokkodai, Nada, Kobe, 657 Japan

(Received April 7, 1995; Accepted July 20, 1995)

Morphological techniques are applied to binary image processors in a multiple-imaging optical system and the following algorithms are proposed: performing morphological basic operations, extraction of boundary lines, detection of characteristic points in small-scale patterns, elimination of salt noises with few pixels, and smoothing of boundaries. Techniques for processing a complicated binary image are demonstrated using the algorithms and a hybrid parallel computing system with a simple optical multiple-imaging system and a personal computer.

Key words : image processing, mathematical morphology, parallel computing, optical computing, optical information processing