Thresholding
7
3
3
3
3
3
3
3
1
1
9
9
5
6
9
9
1
0
0
0
0
0
0
0
0
0
1
1
1
1
1
1
??? 4
Any pixel with value greater than or equal to the threshold gets mapped to 1. Otherwise it's mapped to 0.
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