300HZ 采样率下，50、60HZ陷波器及8HZ高通多项式实现。画出原始数据及滤波后数据并画出相应频谱-50/60HZ notch filter of the matlab program.Plot raw data and filtered data and corresponding Spectrum

Notch Filter and Geometric Transformation In image processing use fft2

图像平滑滤波、频域低通滤波、陷波处理、直方图均衡化-Image filtering, frequency domain lowpass filter, notch processing, histogram equalization