Smoothing of digital images using the concept of diffusion process

Biswas, S. ; Pal, N. R. ; Pal, S. K. (1996) Smoothing of digital images using the concept of diffusion process Pattern Recognition, 29 (3). pp. 497-510. ISSN 0031-3203

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An adaptive smoothing algorithm has been described which is capable of performing various tasks, such as removing salt and pepper noise, preserving roof edges, stretching (enhancing) step edges and reducing variations in low intensity varied regions. While iteration advances, it approximates both isotropic and anisotropic heat diffusion processes in performing these tasks. A region topography index has been defined for guiding the algorithm under different situations. Further, an image quality index is proposed which provides a criterion for automatic termination of the algorithm. This criterion can also be used with other iterative smoothing algorithms. The superiority of the method over some other similar techniques has been established for both synthetic and real images.

Item Type:Article
Source:Copyright of this article belongs to Elsevier Science.
Keywords:Adaptive Smoothing; Isotropic; Anisotropic Diffusion; Edge Stretching; Topography Index Quality Index
ID Code:26111
Deposited On:06 Dec 2010 13:05
Last Modified:13 Jun 2011 05:20

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