Affiliation:
1. Institute of Computer Science, The Romanian Academy, 700481 Iasi, Romania
Abstract
A novel PDE-based image denoising approach is proposed in this paper. One designs here a nonlinear filter for image noise reduction based on the diffusion flow generated by the porous media equation∂u/∂t=Δβ(u), whereβis a nonlinear continuous function of the formβ(u)=λum,0<m<1. With respect to standard 2D Gaussian smoothing and some nonlinear PDE-based filters, this one is more efficient to remove noise from degraded images and also to reduce “staircasing” effects and preserve the image edges.
Funder
Unitatea Executiva pentru Finantarea Invatamantului Superior, a Cercetarii, Dezvoltarii si Inovarii
Subject
Applied Mathematics,Analysis
Reference18 articles.
1. European Consortium for Mathematics in Industry,1998
Cited by
51 articles.
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