利用中值滤波进行数字图像处理，B从人眼的结构和视觉特性出发I研究了图像中噪声产生的机理和消除的方法L提出了利用

中值滤波法消除图像噪声的实用方法I对影响图像信号的不同噪声采用了不同的滤波方法I并对信号的频谱和滤波的效果进行了研究和分析M利用中值滤波法消除图像中的随机噪声是图像噪声处理的最佳方法-Median filtering using digital image processing, B from the structure of the human eye and visual characteristics of the image I start generating mechanism of noise and elimination methods of L raised median filter to eliminate use of image noise affecting the image of practical-I signals in different noise filtering method using a different frequency spectrum and I and the effect of filtering was studied and analyzed the value of M used in the image filter to eliminate the random noise is the best way to deal with image noise