Geodesic
Numerical simulation of modified Perona--Malik equantion in digital image denoising applications.
Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, no. 4 (2011), pp. 191-194

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Classical Perona–Malik model is modified and adapted for digital color image filtering. An advantage of the proposed scheme is the use of perceptual color difference metrics to measure the distance between pixels, and the modification of diffusion coefficients calculation formulas. Numerical simulation shows that the proposed scheme has a high quality and performance.
Keywords: partial differential equations, Perona–Malik equation, image processing, image denoising. 
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     author = {A. A. Yudashkin and D. A. Zausaev and I. S. Ryabtsov},
     title = {Numerical simulation of modified {Perona--Malik} equantion in digital image denoising applications.},
     journal = {Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences},
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     publisher = {mathdoc},
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     year = {2011},
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     url = {http://geodesic.mathdoc.fr/item/VSGTU_2011_4_a26/}
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A. A. Yudashkin; D. A. Zausaev; I. S. Ryabtsov. Numerical simulation of modified Perona--Malik equantion in digital image denoising applications.. Journal of Samara State Technical University, Ser. Physical and Mathematical Sciences, no. 4 (2011), pp. 191-194. http://geodesic.mathdoc.fr/item/VSGTU_2011_4_a26/