用c语言实现的数字滤波的滑动平均法和低通滤波法-with C Language of the moving average filter and low-pass filter

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对数字图像进行频域滤波，有Butterworth低通滤波、Butterworth高通滤波、指数低通滤波、指数高通滤波-Digital image frequency domain filtering, there Butterworth low-pass filter, Butterworth high-pass filter, low-pass filtering index, index of high-pass filtering

高通、低通滤波算法，及线性拟合算法C#源码