matlab code for median filter for removing salt and pepper noise. in this a 3*3 window is selected and the processing pixel is replaced by median of the selected window.

信号处理中的振幅谱和相位谱以及谱密度估计等-1) Calculation of: - One-sided amplitude spectrum - One-sided phase spectrum - Vector of frequencies. 2) The function can plot: - One-sided amplitude spectrum - One-sided phase spectrum. Two examples are g