Stručni rad

Properties and application of median and mean

Vedran Novoselac ; Strojarski fakultet, Sveučilište u Osijeku, Slavonski Brod, Hrvatska
Snježana Rimac-Drlje ; Elektrotehnički fakultet, Sveučilište u Osijeku, Osijek, Hrvatska

Sažetak

In this paper we present the scale and regression equivariant properties of median and mean. Their application is presented in image processing where they are implemented in image denoising filters. We consider two types of image noise: impulse and Gauss noise. We show that the denoising quality of the median and the mean filter is related to the properties of the least absolute deviation and the least square problem, respectively. These filter properties are manifested in the sense of data error distribution generated by the image noise models.

Ključne riječi

median; mean; scale equivariant; regression equivariant; image processing

Hrčak ID:

124966

URI

https://hrcak.srce.hr/124966

Datum izdavanja:

14.7.2014.

Podaci na drugim jezicima: hrvatski

Posjeta: 3.776 *