(c) Use the following two operators S and Sy to determine the horizontal and vertical gradients of the image I shown in Fig. 1. Assume that the gray-level intensities outside the image are all equal to 100. Sx-I-1 0 1 and sy-0 Denote the horizontal and vertical gradients at a point (x, y) as Ix(x, y) and ly(x, y) respectively. Compute the gradient magnitudes Ig(x. y), defined as lg(x.y)- show which pixels are edges. C0 2 3 4 0 | 100 | 100 | 100 | 100 | 100 1 | 100 | 200 | 200 | 200 | 100 2 | 100 | 200 | 200 | 200 | 100 3 | 100 | 200 | 200 | 200 | 100 4 | 100 | 100 | 100 | 100 | 100 Fig. 1: Image (x, y) (c) Use the following two operators S and Sy to determine the horizontal and vertical gradients of the image I shown in Fig. 1. Assume that the gray-level intensities outside the image are all equal to 100. Sx-I-1 0 1 and sy-0 Denote the horizontal and vertical gradients at a point (x, y) as Ix(x, y) and ly(x, y) respectively. Compute the gradient magnitudes Ig(x. y), defined as lg(x.y)- show which pixels are edges. C0 2 3 4 0 | 100 | 100 | 100 | 100 | 100 1 | 100 | 200 | 200 | 200 | 100 2 | 100 | 200 | 200 | 200 | 100 3 | 100 | 200 | 200 | 200 | 100 4 | 100 | 100 | 100 | 100 | 100 Fig. 1: Image (x, y)