Table 2.
Individual statistics (μ: mean, σ: std. dev., εi: initial box error, εx: expanded box error)
| Thresholding Method | Expansion Method | μ ε i | σ ε i | μ ε x | σ ε x | μ s | σ s |
|---|---|---|---|---|---|---|---|
| Otsu | Non-adaptive (P = 2) | 12.05 | 9.10 | 9.00 | 8.95 | 275.07 | 199.28 |
| Kapur | Non-adaptive (P = 2) | 12.87 | 16.86 | 12.68 | 17.56 | 261.95 | 197.94 |
| Huang | Non-adaptive (P = 2) | 20.31 | 67.97 | 17.17 | 69.76 | 269.59 | 190.09 |
| Yen | Non-adaptive (P = 2) | 14.98 | 27.12 | 15.74 | 27.74 | 255.61 | 250.53 |
| Sahoo | Non-adaptive (P = 2) | 13.43 | 24.60 | 13.37 | 25.19 | 254.43 | 184.36 |
| Li | Non-adaptive (P = 2) | 15.12 | 9.65 | 11.06 | 9.07 | 293.54 | 215.80 |
| Otsu | Non-adaptive (P = 4) | 12.05 | 9.10 | 9.10 | 9.14 | 256.86 | 182.82 |
| Kapur | Non-adaptive (P = 4) | 12.87 | 16.86 | 15.54 | 18.61 | 245.36 | 183.78 |
| Huang | Non-adaptive (P = 4) | 20.31 | 67.97 | 16.83 | 70.69 | 251.99 | 174.44 |
| Yen | Non-adaptive (P = 4) | 14.98 | 27.12 | 19.32 | 28.49 | 239.46 | 230.91 |
| Sahoo | Non-adaptive (P = 4) | 13.43 | 24.60 | 16.43 | 25.98 | 238.32 | 170.38 |
| Li | Non-adaptive (P = 4) | 15.12 | 9.65 | 9.41 | 7.99 | 273.93 | 198.61 |