%0 Journal Article
%T Improved adaptive median filtering<br>一种改进的自适应中值滤波方法
%A WEI Bao-guo
%A <br>卫保国
%J 计算机应用
%D 2008
%I 
%X An improved adaptive median filter is proposed to restore images corrupted by impulse noise. There are mainly three improved points in this algorithm. First, the image pixels are classified into signal pixels and noise pixels according to the decision criterion. Second, a measure, denoted as minimum set distance, is introduced to avoid misclassification of high frequency signal as noise. Third, the median of minimum uncorrupted pixel set is used to restore noise pixel, in order to eliminate its neighborhood noise impact. The results of comparison experiments with RAMF and NASMF demonstrate that the proposed method can detect noise with high accuracy, remove noise efficiently while retaining image details, especially to images with high noise density.
%K Image enhancement
%K Noise detection
%K Median filter
%K Adaptive<br>噪声检测
%K 中值滤波
%K 自适应
%K 图像增强
%U http://www.alljournals.cn/get_abstract_url.aspx?pcid=5B3AB970F71A803DEACDC0559115BFCF0A068CD97DD29835&cid=8240383F08CE46C8B05036380D75B607&jid=831E194C147C78FAAFCC50BC7ADD1732&aid=365525C09AA19980D5A53EA8D8EED343&yid=67289AFF6305E306&vid=D3E34374A0D77D7F&iid=DF92D298D3FF1E6E&sid=48603EE1050A0BB7&eid=09614E07E1BC4184&journal_id=1001-9081&journal_name=计算机应用&referenced_num=5&reference_num=9