Research Article
Improved Dark Channel Defogging Algorithm for Defect Detection in Underwater Structures
Table 4
Standard deviation for the six sets of effect charts.
| ā | Image 1 | Image 2 | Image 3 | Image 4 | Image 5 | Image 6 |
| Original image | 11900 | 11600 | 13300 | 12700 | 13800 | 18000 | D image (He) | 12885 | 12675 | 14300 | 12995 | 14452 | 17752 | Tarel image | 32.49 | 35.25 | 33.50 | 32.74 | 33.24 | 33.00 | Joost image | 33.20 | 33.03 | 32.01 | 33.38 | 31.78 | 31.55 | DR image | 13000 | 12900 | 12700 | 14300 | 14500 | 18100 |
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