Decision-based non-local means filter for removing impulse noise from digital images

被引：37

作者：

Zhang, Xuming ^{[1
]}

Zhan, Yi ^{[1
]}

Ding, Mingyue ^{[1
]}

Hou, Wenguang ^{[1
]}

Yin, Zhouping ^{[2
]}

机构：

[1] Huazhong Univ Sci & Technol, Sch Life Sci & Technol, Wuhan 430074, Peoples R China

[2] Huazhong Univ Sci & Technol, Sch Mech Sci & Engn, Wuhan 430074, Peoples R China

来源：

SIGNAL PROCESSING | 2013年 / 93卷 / 02期

基金：

国家自然科学基金重大项目; 中国国家自然科学基金;

关键词：

Impulse noise; Noise detector; Non-local means; Image restoration; SWITCHING MEDIAN FILTER; ALGORITHM; DETECTOR;

D O I：

10.1016/j.sigpro.2012.08.022

中图分类号：

TM [电工技术]; TN [电子技术、通信技术];

学科分类号：

080906 [电磁信息功能材料与结构]; 082806 [农业信息与电气工程];

摘要：

The decision-based non-local means filter is proposed to remove fixed-value impulse noise from the corrupted digital images. The proposed filter first identifies the corrupted pixels using the local statistics based noise detector and then removes the detected impulses using the reference image-based non-local means filter while keeping the uncorrupted pixels unaltered. Extensive simulations demonstrate that the proposed filter can remove impulse noise from the corrupted images effectively while preserving image details very well at the various noise ratios, which leads to its significantly better image restoration performance than numerous state-of-the-art switching-based filters. (C) 2012 Elsevier B.V. All rights reserved.

引用

页码：517 / 524

页数：8

共 20 条

[1]

Efficient nonlocal means for denoising of textural patterns [J].