Table 2.
Types of images in the dataset.
| Dataset | Image size | Training set | Validation set | Total number |
|---|---|---|---|---|
| Crack data set | 2242 | 11,900 | 5100 | 17,000 |
| Longitudina | 2242 | 3566 | 1558 | 5124 |
| Transverse | 2242 | 5962 | 2591 | 8553 |
| Fatigue | 2242 | 2372 | 951 | 3323 |
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