The array below represents a small grayscale image. Calculate the 4 4 image that would result if the middle 16 pixels were transformed using

(i) a 3 3 averaging mask and

(ii) a 3 3 median mask.

17 51 97 125 34 23

35 96 228 245 85 47

56 128 205 245 118 58

85 230 254 202 186 86

188 240 210 150 122 96

96 105 204 88 56 11