2.21 A motion-blurred image (uniform motion in the x-direction with x0(t) a tT ) is observed in the presence of additive white noise with

2.21 A motion-blurred image (uniform motion in the x-direction with x0(t) ¼ a tT

) is observed in the presence of additive white noise with a power spectrum of Sn(vx, vy) ¼ N0.

a. What is the transfer function of the Wiener filter in terms of the power spectrum of the image?

b. Give an algorithm for FFT implementation of the Wiener filter

TABLE 2.4 Histogram of Gray Scale Level Gray level Histogram 0 1 2 3 4 5 6 7 98 145 107 180 152 95 116 131