中文说明：
去噪处理是图像处理中较为重要的环节。中值滤波是抑制图像的噪声的一个行之有效的办法，选择适当大小的中值滤波窗口可以在最大限度的保持图像精度的基础上去除图像噪声。本文在对中值滤波去噪算法的适用性特点进行研究的基础上，进一步研究了中值滤波去噪算法，同时对其他去噪算法，如均值滤波、低通滤波的小波变换进行分析研究，并做了相应的比较。
English Description：
Denoising is an important part of image processing. Median filtering is an effective method to suppress image noise. Choosing an appropriate size of median filtering window can remove image noise on the basis of maintaining image accuracy to the greatest extent. Based on the study of the applicability of median filter denoising algorithm, this paper further studies the median filter denoising algorithm, and analyzes and compares the wavelet transform of other denoising algorithms, such as mean filter and low-pass filter