实现了添加各种噪声的功能，如高斯噪声、椒盐噪声、脉冲噪声等，并用中值滤波等方法进行去噪，效果不错-Adding noise to achieve a variety of functions such as Gaussian noise, salt and pepper noise, impulse noise, and using methods such as median filter for denoising, the effect of good