Abstract

A variety of spatial-filtering tasks can be performed with an incoherent source and various source and pupil masks {a technique proposed by Rhodes and Koizumi [ Proceedings of the Tenth International Optical Computing Conference ( Institute of Electrical and Electronics Engineers, New York, 1983), p. 32] for image enhancement}. A simple method of analyzing such systems is described and used to qualify the images obtained with a few different mask pairs. Some examples of edge extraction and characterization are given.

© 1985 Optical Society of America

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