保护边缘及细节的彩色图像滤波算法

Edges and details keeping filtering algorithm for color images

为克服常用空间域彩色图像滤波算法不能兼顾去噪和保持图像细节的不足,提出了一种保护边缘及细节的彩色图像滤波算法。将待处理RGB彩色图像分解成R、G、B这3幅分量图像,对于每一幅分量图像分别利用能兼顾去噪和保持图像细节的滤波算法进行滤波去噪,将滤波处理后的3幅分量图像合成为一幅RGB彩色图像。因算法根据待处理像素的不同隶属情况选用了不同的滤波模板进行滤波处理,故在有效地滤除彩色图像中的噪声的同时较好的保护了彩色图像的边缘及细节,弥补了常用空域彩色图像滤波算法不能兼顾去噪和保持图像细节的不足。

In order to overcome the shortage that the traditional color images filtering algorithm can not keep image＇s edges and details well as well as filters out noises,an edges and details keeping filtering algorithm for color images is introduced.First the color image is decomposed into R,G,B three component images,then the filtering algorithm which can filter out noises as well as keeps the image＇s edges and details well was selected to denoise the three component images,and at the end the three filtered component images are com-posited to one RGB color image.Because of different template is used to filter the pending pixel according to which template the pending pixel belongs to,this filtering algorithm can filter out noises as well as keeps the image＇s edges and details well.In this respect,the algorithm remedies the shortage of common smoothing algorithm.