Enhanced Radon Transform Skew Estimation And Correctıon Algorithm For Scanned Multiple-Choice Forms
Table 1:
| Methods | Known skew | Accuracy (%) |
| Bounding box | ±6 | 53.0 |
| Normal Radon transform | ±6 | 77.5 |
| Previous Radon transform | ±6 | 90.5 |
| Proposed enhanced Radon transform | ±6 | 98.9 |