Table 3.
Accuracy assessment MATRIX for LULC classes.
| Classification result | |||||||||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| LULC classes | BA | C1 | C2 | C3 | CS | cS | oS | SG | WS | RW | Reference points | PA (%) | |
| Ground truth | BA | 17 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 17 | 100.0 |
| C1 | 0 | 65 | 4 | 2 | 1 | 0 | 0 | 0 | 0 | 0 | 72 | 91.6 | |
| C2 | 0 | 0 | 9 | 5 | 0 | 0 | 0 | 0 | 0 | 0 | 14 | 69.2 | |
| C3 | 0 | 0 | 0 | 15 | 0 | 0 | 0 | 0 | 0 | 0 | 15 | 68.2 | |
| CS | 0 | 1 | 0 | 0 | 26 | 0 | 0 | 0 | 0 | 0 | 27 | 59.1 | |
| cS | 0 | 0 | 0 | 0 | 6 | 67 | 0 | 0 | 0 | 0 | 73 | 93.1 | |
| oS | 0 | 0 | 0 | 0 | 8 | 0 | 50 | 0 | 0 | 0 | 58 | 90.9 | |
| SG | 0 | 3 | 0 | 0 | 3 | 5 | 5 | 85 | 12 | 0 | 113 | 92.4 | |
| WS | 0 | 2 | 0 | 0 | 0 | 0 | 0 | 7 | 136 | 2 | 147 | 90.1 | |
| RW | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 0 | 3 | 8 | 11 | 80.0 | |
| Classified points | 17 | 71 | 13 | 22 | 44 | 72 | 55 | 92 | 151 | 10 | 547 | ||
| CA (%) | 100.0 | 90.3 | 64.3 | 100.0 | 96.3 | 91.8 | 86.2 | 75.2 | 92.5 | 72.7 | |||
| Overall accuracy | 87.4 | ||||||||||||
| Kappa coefficient | 0.85 | ||||||||||||
LULC category codes: BA = built-up area; C1 = cropland (rainfed); C2 = cropland (irrigated); C3 = cropland (perennial); cS = cropshrubs/trees; cS1 = closed shrubland; oS = open shrubland; SG = shrub grassland; WS = wooded shrubland; RW = riverine woodlands.