CV-HW-2

Given an image, filter the image with cross-correlation and convolution, respectively.

Cross-correlation:

1 2 2 3 4 5
2 3 4 5 6 7
3 3 4 4 5 6
4 5 6 7 8 9

Filter:

1 2 1
0 0 0
-1 -2 -1

Result:

-6 -6 5 -4
-8 -8 -8 -8

Convolution:

1 2 2 3 4 5
2 3 4 5 6 7
3 3 4 4 5 6
4 5 6 7 8 9

Filter:

1 2 1
0 0 0
-1 -2 -1

Result:

6 6 -5 4
8 8 8 8