Table 2 Summary of accuracy (%) and Kappa coefficient of the 1985 and 2022 SVM classification
Class Name | Ground Truth (1985) | Ground Truth (2022) | ||||||
|---|---|---|---|---|---|---|---|---|
Agricultural areas | Water bodies | Urban areas | Bare land | Agricultural areas | Water bodies | Urban areas | Bare land | |
Agricultural areas | 100 | 0 | 0 | 0 | 100 | 0 | 0 | 0 |
Water bodies | 0 | 100 | 0 | 0 | 0 | 100 | 0 | 0 |
Urban areas | 0 | 0 | 88.7 | 14.8 | 0 | 0 | 92.4 | 2.7 |
Bare land | 0 | 0 | 11.3 | 85.2 | 0 | 0 | 7.6 | 97.3 |
Total | 100 | 100 | 100 | 100 | 100 | 100 | 100 | 100 |
Producer Accuracy | 100% | 100% | 88.7% | 85.2% | 100% | 100% | 92.4% | 97.3% |
Overall Accuracy | 93.5% | 97.4% | ||||||
Kappa Coefficient | 0.92 | 0.96 | ||||||