ADAPTIVE MULTILEVEL MEDIAN FILTER BASED ON DIRECTION INFORMATION MEASURE
Yang Haijun①; Liang Dequn②; Jiang Xuefeng①
①Inst. of Image Processing and Recognition Xi' an Jiaotong University Xi an 710049 China;②College of Information Engineering Dalian Maritime University Dalian 116026 China
Abstract：This paper presents a new adaptive multilevel median filter based on direction information measure to solve the contradiction between noise attenuation and image details-preserving (edge-preserving). Direction is one of nature distinctions between noise and edge, and an adaptive algorithm based on direction information measure is constructed to decide the format and size of median filter without any knowledge of image and noise. A comparison of median filter, single direction multilevel filter, bidkection multilevel filter and the method in this paper has been done. The result indicates that the method has better effectiveness.
杨海军; 梁德群; 江学峰. 基于方向信息测度的自适应多级中值滤波器[J]. 电子与信息学报, 2001, 23(12): 1326-1332 .
Yang Haijun①; Liang Dequn②; Jiang Xuefeng①. ADAPTIVE MULTILEVEL MEDIAN FILTER BASED ON DIRECTION INFORMATION MEASURE. , 2001, 23(12): 1326-1332 .
2001, Vol. 23 
