Progressive switching median filter for the removal of impulse noise from highly corrupted images

Author

Wang, Zhou ; Zhang, David

Volume

46

Issue

1

fYear

1999

fDate

1/1/1999 12:00:00 AM

Firstpage

78

Lastpage

80

Abstract

A new median-based filter, progressive switching median (PSM) filter, is proposed to restore images corrupted by salt-pepper impulse noise. The algorithm is developed by the following two main points: 1) switching scheme-an impulse detection algorithm is used before filtering, thus only a proportion of all the pixels will be filtered; and 2) progressive methods-both the impulse detection and the noise filtering procedures are progressively applied through several iterations. Simulation results demonstrate that the proposed algorithm is better than traditional median-based filters and is particularly effective for the cases where the images are very highly corrupted

Keywords

filtering theory; image enhancement; image restoration; impulse noise; interference suppression; median filters; switched filters; highly corrupted images; impulse detection algorithm; impulse noise removal; median-based filter; noise filtering procedures; progressive methods; progressive switching median filter; restored images; salt-pepper impulse noise; switching scheme; Detection algorithms; Detectors; Filtering algorithms; Image edge detection; Image enhancement; Image restoration; Image sensors; Noise generators; Nonlinear filters; Pixel;

fLanguage

English

Journal_Title

Circuits and Systems II: Analog and Digital Signal Processing, IEEE Transactions on

Publisher

ieee

ISSN

1057-7130

Type

jour

DOI

10.1109/82.749102

Filename

749102