一种抑制混合噪声的组合滤波算法

A combination filtering algorithm for suppression mixed noise

为了滤除图像中存在的混合噪声,提出了一种基于中值和均值的组合滤波算法。算法分两步进行,第一步采用改进的中值滤波算法过滤图像中的椒盐噪声;第二步将滤除椒盐噪声的图像采用均值滤波算法进行平滑,滤除高斯噪声。计算机仿真实验表明,组合滤波算法对于图像中的椒盐噪声和高斯噪声具有较好的滤除效果和细节保护作用,性能明显优于传统滤波算法。

In order to remove mixed noise in a image, this paper proposed a combination filtering algorithm based on median and mean. The algorithm includes two steps, firstly, it uses improved median filter algorithm to filter out the salt and pepper of the image; secondly, it uses the mean filter algorithm to smooth the image, filters the Gaussian noise. The computer simulation experiments show, the （combination filtering algorithm can remove the salt and pepper noise and Gaussian noise in a image well, and can protect the image details, the performance is significantly better than the traditional filtering algorithms.