Pour Malik Oussékine (1986)

Ramp preserving Perona-Malik model

The Perona–Malik (PM) model, a classical anisotropic diffusion, can preserve edges while removing the noise. However, the defect of traditional PM model is tending to contain the staircase effect in the processed image. For this reason, a novel ramp preserving Perona–Malik (RPPM) model based on a new edge indicator is presented. In the RPPM model, the diffusion coefficient of the PM model is ad...

1986 , Volume , Issue Apr-1986

Publications for Richard Malik 2017

Kessell, A., McNair, D., Munday, J., Savory, R., Halliday, C., Malik, R. (2017). Successful treatment of multifocal pedal Prototheca wickerhamii infection in a feline immunodeficiency viruspositive cat with multiple Bowenoid in situ carcinomas containing papillomaviral DNA sequences. Journal of Feline Medicine and Surgery Open Reports. [More ...

Perona-Malik equation and its numerical properties

This work concerns the Perona-Malik equation, which plays essential role in image processing. The first part gives a survey of results on existance, uniqueness and stability of solutions, the second part introduces discretisations of equation and deals with an analysis of discrete problem. In the last part I present some numerical results, in particular with algorithms applied to real images.

Time-delayed Perona-malik Type Problems

We propose time regularizations for ill posed evolution equations of the type of the Perona-Malik equation of image processing, prove that they are well posed, and give numerical evidence for their superiority to the widely used space regularizations.