Research Article
Detection of Surface Crack in Building Structures Using Image Processing Technique with an Improved Otsu Method for Image Thresholding
Table 1
Results of crack analysis.
| Testing image | Crack objects | Area | Orientation | Mean crack width | Maximum crack width | Perimeter | Length |
| 1 | — | — | — | — | — | — | — | 2 | 1 | 2441 | −17.36 | 3.24 | 6.32 | 750.74 | 372.13 | 3 | 1 | 2238 | −89.58 | 4.27 | 9.99 | 1250.00 | 620.88 | 4 | 1 | 1738 | −14.57 | 0.18 | 0.45 | 879.35 | 439.50 | 5 | 1 | 97 | 86.15 | 1.36 | 1.94 | 140.94 | 69.11 | 2 | 194 | 85.42 | 0.88 | 1.12 | 250.77 | 124.50 |
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