2
1
2
0 1 30 11 0 -1
15 1 15 11 0 2
haar_x2
-5.286888e-01 0 -1
7.504816e-01 -7.016845e-01 
1
2
1 7 28 2 0 -1
8 7 14 2 0 2
haar_x4
1.083681e-01 0 -1
-8.460897e-01 6.346892e-01 
-9.560806e-02

7
-1