You must use a same-domain image.

Convolution

Name Matrix clamp wrap mirror omit 0.0 1.0
Identity
0 0 0
0 1 0
0 0 0
Box Blur
1/9 1/9 1/9
1/9 1/9 1/9
1/9 1/9 1/9
Guassian Blur
1/16 1/8 1/16
1/8 1/4 1/8
1/16 1/8 1/16
Sharpen
0 -1 0
-1 5 -1
0 -1 0
Laplacian
0 1 0
1 -4 1
0 1 0
Sobel (dx)
-1 0 1
-2 0 2
-1 0 1
Sobel (dy)
-1 -2 -1
0 0 0
1 2 1
Sobel-Feldman (dx)
-3 0 3
-10 0 10
-3 0 3
Sobel-Feldman (dy)
-3 -10 -3
0 0 0
3 10 3
Scharr (dx)
-47 0 47
0 0 0
-47 0 47
Scharr (dy)
-47 -162 -47
0 0 0
47 162 47
Prewitt (dx)
-1 0 1
-1 0 1
-1 0 1
Prewitt (dy)
-1 -1 -1
0 0 0
1 1 1