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Edge detection in digital images using dispersive phase stretch transform
Mohammad H Asghari1, Bahram Jalali2
1Department of Electrical Engineering, University of California, Los Angeles, Los Angeles, CA 90095, USA.
Abstract:
We describe a new computational approach to edge detection and its application to biomedical images. Our digital algorithm transforms the image by emulating the propagation of light through a physical medium with specific warped diffractive property. We show that the output phase of the transform reveals transitions in image intensity and can be used for edge detection.
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