计算机工程与应用 ›› 2010, Vol. 46 ›› Issue (31): 175-177.DOI: 10.3778/j.issn.1002-8331.2010.31.048

• 图形、图像、模式识别 • 上一篇    下一篇

基于ROLD统计量的混合噪音线性滤波算法

罗晓军1,2,王世秀3,李 兵4,许俊玲2   

  1. 1.商丘职业技术学院 计算机系,河南 商丘 476000
    2.长沙理工大学 数学与计算科学学院,长沙 410114
    3.商丘电视台,河南 商丘 476000
    4.中山职业技术学院,广东 中山 528404
  • 收稿日期:2009-10-13 修回日期:2009-12-21 出版日期:2010-11-01 发布日期:2010-11-01
  • 通讯作者: 罗晓军

Mixed noise linear filter based on ROLD statistics

LUO Xiao-jun1,2,WANG Shi-xiu3,LI Bing4,XU Jun-ling2   

  1. 1.Department of Computer,Shangqiu Vocational and Technical College,Shangqiu,Henan 476000,China
    2.School of Math. and Computing Science,Changsha University of Science and Technology,Changsha 410114,China
    3.Shangqiu Broadcaster,Shangqiu,Henan 476000,China
    4.Zhongshan Vocational and Technical College,Zhongshan,Guangdong 528404,China
  • Received:2009-10-13 Revised:2009-12-21 Online:2010-11-01 Published:2010-11-01
  • Contact: LUO Xiao-jun

摘要: 提出一种基于ROLD统计量的混合噪音线性滤波算法(RLMF)。算法把用来检测脉冲噪音的ROLD统计量运用于混合噪音的滤波算法上,提高了混合噪音中脉冲噪音成分的检测效率,它不仅适用于恢复被混合噪音污染的数字图像,而且也适用于恢复被纯脉冲噪音或纯高斯噪音污染的数字图像。仿真实验证明,RLMF滤波后的图像视觉效果和PSNR均优于已知的同类滤波器。

关键词: 数字图像, ROLD统计量, 混合噪音, 滤波算法

Abstract: A mixed noise linear filter based on ROLD statistics is proposed,RLMF for short.This algorithm applies the ROLD statistics for detecting the pure impulse noise to the mixed noise filter.Its efficiency of detecting impulse component is increased in mixed noise.It is not only suitable for digital images corrupted with mixed noises(impulse noise and Gaussian noise),and suitable for digital images corrupted with pure impulse noise or pure Gaussian noise.The experiments show that,visual effects and PSNR of denoised image produced by RLMF are superior to the known similar filters.

Key words: digital image, Rank Ordered Logarithmic Difference(ROLD) statistic, mixed noise, filter algorithm

中图分类号: