可保留细节信息的全方位多级组合滤波法的研究

传统全方位多级组合滤波法在抑制噪声的同时会严重模糊图像，通过分析该问题产生的原因，提出了一种改进的滤波方法，该方法先对图像象素进行是否为边缘点、孤立噪声点或平滑区域点的预判断，然后再根据判断结果分别进行处理。实验结果表明，该方法能很好地保留图像边缘细节信息，取得了较好的处理效果。

RESEARCH OF AN OMNI DIRECTIONAL MULTISTAGE COMBINATION FILTER METHOD REMAINED THE INITIAL IMAGE'S DETAIL

This paper aim at the problem that omni directional multistage combination filter method fuzz the edge of image while removing noise,the reason of causing this problem is analyzed and another omni directional multistage combinative algorithm is proposed.It pointed out that should pre-judged if pixel is edge pixel,isolated pixel or smooth area pixel,then processing it according to judgement.The result of experiment shows that this algorithm can preserve much more edge information of image when removing noise and achieve better effect.