Subject is Image Processing and Image Simulation

urgent need answer

II. How do you determine whether a spatial filter is a smoothing filter or a sharpening filter? Write down the filter results of 3X3 median filter on the right image (Ignore the border). (15') 86 9 6 8 7 5 6 5 7 III. 5 10 | 12 105 7 5 6 5 7 Please give the steps of frequency domain image filtering based on Fourier transform. Write down the convolution theorem and explain it. For the Fourier transform, what kind of content does the DC component, the low-frequency component and the high-frequency component correspond to? (20) 8 6 9 6 8