TABLE II. Number of Images per Class and per-Fold Before and After Data Augmentation.
| Class | # of Samples | Training Samples | Augmented Training Samples | Test Samples |
|---|---|---|---|---|
| Bacterial Pneumonia | 2760 | 2208 | 2208 | 552 |
| Viral Pneumonia | 1485 | 1188 | 2208 | 297 |
| Normal | 1579 | 1263 | 2208 | 316 |
| COVID-19 | 462 | 370 | 2208 | 92 |
| Total | 6286 | 5029 | 8832 | 1257 |