论文信息 - Optimum Laplacian for digital image processing

Optimum Laplacian for digital image processing

Spatially quantized approximations of the Laplacian used in digital image processing are not rotationally invariant. We examine the anisotropy of 3/spl times/3 Laplacian operators for images quantized in square pixels, and derive, from optimizing criteria, the operator which has the minimum overall anisotropy.

A. Rosenfeld | B. Kamgar-Parsi

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