Title
A non-parametric filter for digital image restoration, using cluster analysis
Abstract
We introduce a method to restore digital images with contaminated pixels. One particular characteristic of this method is that it does not change the pixels that are not considered contaminated, thus avoiding excessive intervening of the original image. Each pixel is analyzed by studying its eight point neighborhood. A cluster analysis is performed on the group of eight pixels contained in the neighborhood. After deciding how many clusters there are in the neighborhood, a decision is made whether the center pixel is an outlier or not. If so, to assign a new value, another decision is made, on a probabilistic basis, as to which cluster it belongs.This method can be applied to black and white images as well as to color and multiphase images.
Year
DOI
Venue
2004
10.1016/j.patrec.2004.01.009
Pattern Recognition Letters
Keywords
Field
DocType
multiphase image,non-parametric filter,contaminated pixel,digital image,particular characteristic,image restoration,center pixel,cluster analysis,digital image restoration,robust image processing,probabilistic basis,new value,original image,point neighborhood,image processing
Computer vision,Pattern recognition,Non-local means,Binary image,Artificial intelligence,Pixel,Image restoration,Image resolution,Morphological gradient,Neighborhood operation,Mathematics,Pixel connectivity
Journal
Volume
Issue
ISSN
25
8
Pattern Recognition Letters
Citations 
PageRank 
References 
17
0.86
2
Authors
2
Name
Order
Citations
PageRank
Héctor Allende114831.69
Jorge Galbiati2252.91