Question - Consider a 5-pixel filter that computes the average of pixel (x, y) and its 4-neighbors.
(a) What is the impulse response of this filter?
(b) Find the equivalent filter H(u, v) in the frequency domain.
(c) Show that your result is a low-pass filter. In particular, plot |H(u, v)|. You might want to use MatLab to make this plot.