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Proceedings Paper

Anisotropic diffusion with monotonic edge-sharpening
Author(s): Wenhua Ma; Yu-Li You; Mostafa Kaveh
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Paper Abstract

Through its evolution with time, anisotropic diffusion provides multi-scale edge-sensitive smoothing of noisy images. Depending on the type of equation used, such a procedure may also have the ability to sharpen the edges. This paper characterizes the edge-sharpening abilities of a well-known diffusion equation based on the characteristics of the second eigenvalue of the Hessian of a function related to the diffusivity function. It then proposes a new way of diffusivity function design based on the natural requirement of the degree of edge sharpening monotonically related to the strength of edges. A comparative example based on the Structural Similarity Index (SSIM) is also presented.

Paper Details

Date Published: 8 February 2010
PDF: 8 pages
Proc. SPIE 7532, Image Processing: Algorithms and Systems VIII, 753211 (8 February 2010); doi: 10.1117/12.840113
Show Author Affiliations
Wenhua Ma, Guangdong Univ. of Foreign Studies (China)
Yu-Li You, Univ. of Minnesota (United States)
Mostafa Kaveh, Univ. of Minnesota (United States)

Published in SPIE Proceedings Vol. 7532:
Image Processing: Algorithms and Systems VIII
Jaakko T. Astola; Karen O. Egiazarian, Editor(s)

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