Image filter kernels as defined in PIL

blur
11111
10001
10001
10001
11111
contour
-1-1-1
-18-1
-1-1-1
detail
0-10
-110-1
0-10
edge enhance
-1-1-1
-110-1
-1-1-1
edge enhance more
-1-1-1
-19-1
-1-1-1
emboss
-100
010
000
find edges
-1-1-1
-18-1
-1-1-1
smooth
111
151
111
smooth more
11111
15551
154451
15551
11111
sharpen
-2-2-2
-232-2
-2-2-2