|
| Preprocessing method | Postprocessing method | Average sensitivity | Average specificity | Average accuracy |
|
| CLAHE with average filter using Otsu | Morphological opening | 0.57309 | 0.99048 | 0.95376 |
| Morphological opening and median filter | 0.59957 | 0.98439 | 0.95054 |
| All techniques combined | 0.65349 | 0.97798 | 0.94943 |
|
| CLAHE with Gaussian filter using Otsu | Morphological opening | 0.56045 | 0.99247 | 0.95449 |
| Morphological opening and median filter | 0.61246 | 0.98482 | 0.95204 |
| All techniques combined | 0.67290 | 0.97651 | 0.94980 |
|
| CLAHE with average and Gaussian filters using Otsu | Morphological opening | 0.57529 | 0.98889 | 0.95255 |
| Morphological opening and median filter | 0.58221 | 0.98201 | 0.94688 |
| All techniques combined | 0.64159 | 0.97172 | 0.94269 |
|
| CLAHE with adaptive filter using Otsu | Morphological opening | 0.53973 | 0.99087 | 0.95118 |
| Morphological opening and median filter | 0.56335 | 0.98390 | 0.94691 |
| All techniques combined | 0.61596 | 0.96773 | 0.93678 |
|
| CLAHE with average filter using ISODATA | Morphological opening | 0.56730 | 0.99092 | 0.95366 |
| Morphological opening and median filter | 0.59380 | 0.98495 | 0.95056 |
| All techniques combined | 0.61630 | 0.98395 | 0.95162 |
|
| CLAHE with Gaussian filter using ISODATA | Morphological opening | 0.60458 | 0.98892 | 0.95508 |
| Morphological opening and median filter | 0.63350 | 0.98193 | 0.95125 |
| All techniques combined | 0.67011 | 0.97695 | 0.94997 |
|
| CLAHE with average and Gaussian filters using ISODATA | Morphological opening | 0.55402 | 0.99129 | 0.95286 |
| Morphological opening and median filter | 0.58024 | 0.98247 | 0.94993 |
| All techniques combined | 0.60265 | 0.98459 | 0.95104 |
|
| CLAHE with adaptive filter using ISODATA | Morphological opening | 0.58487 | 0.98978 | 0.95417 |
| Morphological opening and median filter | 0.61775 | 0.98318 | 0.95104 |
| All techniques combined | 0.64348 | 0.98185 | 0.95209 |
|
| Phase congruence with Otsu | Morphological opening | 0.45610 | 0.99210 | 0.94509 |
| Morphological opening and median filter | 0.48690 | 0.98754 | 0.94364 |
| All techniques combined | 0.47232 | 0.98849 | 0.94324 |
|
| Phase congruence with ISODATA | Morphological opening | 0.51579 | 0.98872 | 0.94722 |
| Morphological opening and median filter | 0.55410 | 0.98278 | 0.94517 |
| All techniques combined | 0.53369 | 0.98459 | 0.94504 |
|
| Phase congruence with IDM-based threshold | Morphological opening | 0.71520 | 0.96496 | 0.94302 |
| Morphological opening and median filter | 0.74247 | 0.95461 | 0.93596 |
| All techniques combined | 0.73910 | 0.95687 | 0.93772 |
|
