图像处理自适应滤波器matlab

Question

Below is a small region of an image consisting of a noisy step edge. (The original image had value=30 on the left of the step, and
value=10 to the right of the step.) It was corrupted by additive Gaussian noise with zero mean and variance = 6.5.
32 25 29 30 27 13 14 16 12 7
28 31 32 31 28 11 7 12 6 11
32 28 30 33 31 10 11 8 14 12
27 28 33 32 27 11 12 12 6 12
32 30 29 29 31 13 9 12 13 10
At the three points indicated by the boxes, compute the value of the adaptive filter
shown in Equation 5.3-12 in the textbook. (The size of the filter is 5x5.)You should
give the results of local mean, local var and filter value on these three points.

Answer 1

Where is Equation 5.3-12 ? You have not put it here.