EM 1110-2-2907
1 October 2003
b. Low Pass: center weighted mean kernel.
1
1
1
1
2
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
2
2
2
1
1
1
1
1
1
1
1
1
1
10
2
3
2
1
1
1
1
1
1
1
1
1
1
1
2
2
2
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
Raw data
Output data
c. High Pass kernel.
-1
-1
-1
-1
8
-1
-1
-1
-1
10 10 10
10
10
10
10
0
0
0
0
0
0
0
10 10 10
10
10
10
10
0
0
0
0
0
0
0
10 10 10
10
10
10
10
0
0
0
0
-5
-5
-5
10 10 10
10
10
10
0
0
0
0
15
-5
40
-5
10 10 10
10
10
10
10
0
0
0
0
-5
-5
-5
10 10 10
10
10
10
10
0
0
0
0
0
0
0
10 10 10
10
10
10
10
0
0
0
0
0
0
0
Raw data
Output data
d. Direction Filter: north-south component kernel.
-1
2
-1
-2
1
-2
-1
2
-1
1
1
1
1
1
1
0
0
-4
8
-4
0
0
2
1
1
1
1
1
1
0
0
-4
8
-4
0
0
2
1
1
1
1
1
1
0
0
-4
8
-4
0
0
2
1
1
1
1
1
1
0
0
-4
8
-4
0
0
2
1
1
1
1
1
1
0
0
-4
8
-4
0
0
2
1
1
1
1
1
1
0
0
-4
8
-4
0
0
2
1
1
1
1
1
1
0
0
-4
8
-4
0
0
2
Raw data
Output data
e. Direction Filter: East-west component kernel.
-1
-2
-1
2
4
2
-1
-2
-1
1
1
1
1
1
1
0
0
0
0
0
0
0
2
1
1
1
1
1
1
0
0
0
0
0
0
0
2
1
1
1
1
1
1
0
0
0
0
0
0
0
2
1
1
1
1
1
1
0
0
0
0
0
0
0
2
1
1
1
1
1
1
0
0
0
0
0
0
0
2
1
1
1
1
1
1
0
0
0
0
0
0
0
2
1
1
1
1
1
1
0
0
0
0
0
0
0
2
Raw data
Output data
5-26