Predefined Laplacian Kernels
The following table lists the predefined Laplacian 3 × 3 kernels.
| #0 Contour 4 | #1 +Image×1 | #2 +Image×2 |
| 0-1 0 -1 4 -1 0 -1 0 |
0-1 0 -1 5 -1 0 -1 0 |
0-1 0 -1 6 -1 0 -1 0 |
| #3 Contour 8 | #4 +Image×1 | #5 +Image×2 |
| -1 -1 -1 -1 8 -1 -1 -1 -1 |
-1 -1 -1 -1 9 -1 -1 -1 -1 |
-1 -1 -1 -1 10 -1 -1 -1 -1 |
| #6 Contour 12 | #7 +Image×1 | |
| -1 -2 -1 -2 12 -2 -1 -2 -1 |
-1 -2 -1 -2 13 -2 -1 -2 -1 |
The following table lists the predefined Laplacian 5 × 5 kernels.
| #0 Contour 24 | #1 +Image×1 |
| -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 24 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 |
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 25 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 |
The following table lists the predefined Laplacian 7 × 7 kernels.
| #0 Contour 48 | #1 +Image×1 |
| -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 48 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 |
-1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 49 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 -1 |