中值滤波是常用的降噪算法，它可以保留比较尖锐的边界，但是却容易模糊图象的细节。尽管已经有一些改进

算法，但效果并不十分理想。文章介绍了一种保细节中值滤波算法，采用了多尺度多方向的窗口，根据图象各部分特性自

适应地选择窗口进行中值滤波。实验结果证明，文章的算法优于其他几种常用的中值滤波算法。

-Median filter is commonly used in noise reduction algorithm, which can retain relatively sharp boundary, but the details easy to fuzzy images. Despite some improved algorithm, the effects are not very good. In this paper, the details of a security filtering algorithm using the multi-scale multi-orientation of the window, according to characteristics of the various parts of the image selection window for adaptive median filter. The experimental results proved that the article is better than several other commonly used algorithm of median filtering algorithm.