68 Ch a p t e r Th r e e
1 1 Image B 1 0 1 0
1 1 1 1
Image A
Case 1 0 Length of Line Section Case 1 0
0 1 0 0 1 0
0 0 0 1
0 0
Case 2 Case 3
0 1 1 0 1 1
0 1 1 1
0 0
Case 3 Case 3
0 1 0 1 1 0
1 0 1 0
0 0
Case 4 Case 4
1 1 0 0
1 1
0 0
Case 4 Case 5
FIGURE 3.8 Illustration of the interpolation cases.