Low-pass filtering effect           Sensitivity to noise           High computational complexity           Inability to detect diagonal edges

The frequency Sampling Realization of  filter is computationally more efficient than the direct form realizationSelect one:TrueFalse

Sharpening Spatial Filter

the image smoothing using the frequency domain low pass filter(a) Ideal (b) Butterworth (c) Gaussian

First derivative mask such as Robert, Prewitt, Sobel and Fri-chen are suitable to detect Step EdgesSelect one:TrueFalse

First derivative mask such as Robert, Prewitt, Sobel and Fri-chen are suitable to detect Step Edges