Optimal edge detection using perfect sharpening of ramp edges

Authors:
Eun Mi Kim;Cherl Soo Pahk;Jong Gu Lee
Affiliations:
Dept. of Computer Science, Howon Univ., Korea;Dept. of Visual Optics and Optometry, Daebul Univ., Korea;Dept. of Computer Science, Chonbuk Univ., Korea
Venue:
ICCSA'06 Proceedings of the 2006 international conference on Computational Science and Its Applications - Volume Part III
Year:
2006

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Abstract

The strictly monotonic intensity profiles of ramp edges are mapped to a simple step function of intensity. Such a perfect sharpening of ramp edges can be used to define a differential operator nonlocally, in terms of which we can construct an edge detection algorithm to determine the edges of images effectively and adaptively to varying ramp widths.