Table 3. Correlation coefficient ρ(L, d) for individual standard distortions.
| Distortion | General expression for ρ(L, d) | Value for αmax = 60° |
|---|---|---|
| Magnification | 1 | 1 |
| Rotation |
|
0.984 |
| Barrel-pincushion | 0.958 | 0.958 |
| Spiral |
|
0.943 |
| Elliptical |
|
|
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