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Ablation study on the impact of each component.
| Configuration | Overall Acc. | Anti-forensic Acc. |
|---|---|---|
| Full model (ours) | 98.2 | 75.3 |
| w/o identity branch | 87.3 | 62.5 |
| w/o spatial branch | 86.4 | 55.1 |
| w/o frequency branch | 90.1 | 69.2 |
| w/o multi-channel fusion | 85.8 | 60.7 |
Metrics are overall classification accuracy (%). The bold values indicate the best performance during a comparison.
