一种广义多结构元形态滤波器

 形态滤波器是一种非线性滤波器.基于基本的形态变换—腐蚀和膨胀,采用多结构元素的方法,构造了广义形态开最大和广义形态闭最小滤波器.这类滤波器具有平移不变性、递增性、对偶性等重要性质.为了验证广义形态开最大、闭最小滤波器的有效性,针对含有不同幅值椒盐噪声和混合噪声的测试图像,使用这类滤波器对其进行滤波.滤波结果表明广义形态开最大、闭最小滤波器在抑制噪声的同时能保持更多的几何信息.随着噪声增强它的抗噪性也增强,而且它运行的时间将小于形态开闭最大、闭开最小、广义形态开闭最大、闭开最小滤波器运行的时间.

A Class of Generalized Morphological Filter With Multiple Structuring Elements

Morphological filter is a kind of non-linear filter.Based on the erosion and dilation operations a class of generalized open maximum and close minimum morphological filter is constructed by using multiple structuring elements in this paper.These filters possess some important properties such as translation invariance、duality、increasing and so on.In order to verify its effectiveness,we simulated against different noise with generalized open maximum and close minimum morphological filters.The simulation results obtained from computer calculation show that these filters can preserve the geometrical features and edges of the image when they suppress noise in the image and their speed is faster than that of traditional multiple structuring elements morphological filters.The stronger the noise becomes the stronger its noise-suppressing becomes.