(a) Design a 3 x 3 kernel that detects vertical lines in a black and white image, and returns the value 8 when applied to the upper-left-hand side of the image in Figure 3.2. It should return zero if all the pixels in the patch are of equal intensity.

(b) Design another such kernel.

0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 2.0 2..0 0.0 0.0 0.0 2.0 2.0 2..0 0.0 0.0 0.0 2.0 2.0 2..0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 2.0 2.0 2..0 0.0 0.0 0.0 2.0 2.0 2..0 0.0 0.0 0.0 2.0 2.0 2..0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0 0.0