title: A detection statistic for random-valued impulse noise.
abstract: This paper proposes an image statistic for detecting random-valued impulse noise. By this statistic, we can identify most of the noisy pixels in the corrupted images. Combining it with an edge-preserving regularization, we obtain a powerful two-stage method for denoising random-valued impulse noise, even for noise levels as high as 60%. Simulation results show that our method is significantly better than a number of existing techniques in terms of image restoration and noise detection.
authors.affiliation: School of Mathematical Sciences, Peking University, Beijing 100871, China. dyiqiu@math.pku.edu.cn
authors.forename: Yiqiu
authors.initials: Y
authors.lastname: Dong
authors.forename: Raymond H
authors.initials: RH
authors.lastname: Chan
authors.forename: Shufang
authors.initials: S
authors.lastname: Xu
mesh_terms: D000465:Algorithms; D016477:Artifacts; D003198:Computer Simulation; D003627:Data Interpretation, Statistical; D007089:Image Enhancement / Q000379:methods*; D007090:Image Interpretation, Computer-Assisted / Q000379:methods*; D015233:Models, Statistical; D015203:Reproducibility of Results; D012680:Sensitivity and Specificity; D012815:Signal Processing, Computer-Assisted