中文说明：
为了弥补传统中值滤波器在进行图像降噪处理中的不足,在图像降噪技术中应用了自适应中值滤波器。文中重点介绍了自适应中值滤波器的工作原理并在Matlab平台上进行了仿真试验，与传统中值滤波器进行了比较,计算机仿真结果表明在对密度较大的椒盐噪声进行滤波时,自适应中值滤波较传统中值滤波具有较大的优越性。
English Description：
In order to make up for the shortcomings of traditional median filter in image denoising, adaptive median filter is applied in image denoising technology. This paper mainly introduces the working principle of the adaptive median filter, and carries out the simulation test on the MATLAB platform, and compares it with the traditional median filter. The computer simulation results show that the adaptive median filter has greater advantages than the traditional median filter when filtering the salt and pepper noise with high density