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all_noise_medium
- 分别对加入椒盐噪声和高斯噪声的图像通过中值滤波器进行滤波，输出滤波后的图像以及信噪比。(The image of adding salt and pepper noise and Gaussian noise is filtered through the median filter, and the filtered image and signal to noise ratio are output.)
noise
- 对图片加入高斯噪声和椒盐噪声，输出处理后的图像(Add Gauss noise and salt and pepper noise to the picture)
zhongzhilvbo
- 自己编写的实现中值滤波的函数，可以实现去高斯噪音，椒盐噪音等功能(my imfilter2 function)
main
- 用中值滤波 、高斯滤波和均值滤波来处理图片中的椒盐和高斯噪声(Using median filter, Gauss filter and mean filter to deal with salt and pepper noise and Gauss noise in the picture)
Butterworth
- 加入椒盐噪声后，频域转换，利用巴特沃斯滤波器进行去躁(After adding the salt and pepper noise, the frequency domain conversion, the Butterworth filter is used to remove the impatience)
guassfilter
- 识别pcb版上的焊孔，可首先对带椒盐噪声的图片进行滤波(Identifying the welding holes on the PCB plate)