ADAPTIVE ESTIMATING DETAIL PRESERVING FILTER FOR IMAGE PROCESSING   

估值型自适应图象细节保护滤波器(英文)

作　　者：李向吉[1] 丁润涛[1] 

机构地区：[1]天津大学电子信息工程学院

出　　处：《Transactions of Tianjin University》1998年第2期68-71,共4页天津大学学报（英文版）

摘　　要：A new adaptive detail preserving filter for image processing is presented.By comparing the difference of the values evaluated in the different directions or regions,this filter can decide which region (homogeneous region or detail region) the filtering pixels belong to and then apply different filtering schemes.This filter has better performance of noise filtering and detail preserving than the multistage median filter (MMF).It can be applied especially to the images simultaneously corrupted by Gaussian noise and impulsive noise,and is simple in computation and implementation.提出一种新型自适应图象细节保护滤波器．它从不同方向或不同区域对滤波象素点的灰度值进行估计，通过比较各估值的差异，判断是属于灰度均匀区还是属于细节区，以采取不同的滤波方法．该滤波器的计算量小，尤其适用于同时受高斯噪声和脉冲噪声污染的图象，其噪声滤除性能和细节保护能力优于多层中值滤波器．

关 键 词：ESTIMATING detail  preserving  filtering adaptive  filtering 

分 类 号：TN713[电子电信—电路与系统]