Table 6 A comparison of evaluation indicators of different methods
From: CIEM-SCC: cinnabar inscription enhancement method via spectral curve classification
Metric | PCA | MNF | ICA | Branch2 |
|---|---|---|---|---|
Average gradient | 6.79 | 2.77 | 3.24 | 12.97 |
Edge strength | 72.62 | 29.43 | 34.47 | 128.03 |
Contrast | 115.55 | 27.66 | 26.73 | 621.68 |
Information entropy | 7.14 | 6.59 | 5.51 | 6.58 |
