Problem

Apply sobel filter for the following image on non border cells to detect horizontal and vertical edges

Marking non border cells

Therefore we have to compute 3*3 matrix of G_x and G_y

Computing G_x

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 20 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 30 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 40 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 30 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 40 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 50 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 40 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 50 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 60 and apply the horizontal kernel

Computing G_y

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 20 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 30 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 40 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 30 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 40 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 50 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 40 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 50 and apply the horizontal kernel

10	10	20	20	30
10	20	30	40	50
20	30	40	50	60
30	40	50	60	70
40	50	60	70	80

Find the neighbors of 60 and apply the horizontal kernel

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