Research Article
Recognition of Tunnel Lining Cracks Based on Digital Image Processing
Table 6
Figure of the results of identification of crack types.
| Type of crack | Quantity | Recognition accuracy (%) |
| Horizontal cracks | 100 | 98 | Vertical cracks | 100 | 96 | Oblique cracks | 100 | 90 | Network cracks | 100 | 98 | Mixed cracks | 100 | 92 |
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