A bar phantom is imaged by an LSI system which is modeled as an ideal moving average system. The PSF of the system is h(x,y) = rect(x/delta, y/delta) (a) If bar separation of the bar phantom is f what is the output of the imaging system? (b) If bar separation of the bar phantom is f/2 what is the output of the imaging system? (c)Derive a relationship between the contrast of the output image and the bar separation