Methods | Patch size | Metrics | |||
---|---|---|---|---|---|
Capacity (bit) | PSNR (dB) | SSIM | EPI | ||
IBDH method in [3] | 1 × 1 | 15503 | 48.6835 | 0.99868 | 1.0845 |
IBDH-DCT (proposed) | 2 × 2 | 2950 | 49.8114 | 0.99986 | 1.013 |
4 × 4 | 11315 | 51.4128 | 0.99991 | 0.99835 | |
8 × 8 | 24536 | 50.995 | 0.99944 | 1.0313 | |
16 × 16 | 28909 | 50.6815 | 0.99677 | 1.0828 | |
32 × 32 | 29596 | 50.5888 | 0.99432 | 1.1114 | |
64 × 64 | 29800 | 50.5598 | 0.99311 | 1.1281 | |
128 × 128 | 28270 | 50.5422 | 0.99355 | 1.1262 | |
256 × 256 | 28584 | 50.5660 | 0.99357 | 1.1328 |