Research Article
Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
Table 5
Entropy for the six sets of effect maps.
| | | Image 1 | Image 2 | Image 3 | Image 4 | Image 5 | Image 6 |
| | Original image | 5.63 | 4.98 | 4.59 | 4.93 | 6.41 | 6.45 | | D image (He) | 5.62 | 5.08 | 4.60 | 4.97 | 4.75 | 6.48 | | Tarel image | 6.25 | 5.66 | 5.04 | 7.04 | 7.50 | 7.38 | | Joost image | 4.90 | 5.64 | 4.93 | 4.80 | 6.78 | 6.76 | | DR image | 5.63 | 5.18 | 4.66 | 5.01 | 6.61 | 6.53 |
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