Table 5 Cover vs stego quality using secret image size 512 × 512.
# | Index mode | ECC | Size | BPP_cfg | Attack | PSNR (C vs S) | SSIM (C vs S) | IF (C vs S) | MSE (C vs S) |
|---|---|---|---|---|---|---|---|---|---|
1 | ACO | True | (64, 64) | – | None | 59.686 | 0.999520 | 0.999990 | 0.069901 |
2 | ACO | False | (64, 64) | – | None | 59.920 | 0.999549 | 0.999991 | 0.066227 |
3 | random | True | (64, 64) | – | None | 59.683 | 0.999120 | 0.999990 | 0.069954 |
4 | perm | True | (64, 64) | – | None | 59.707 | 0.999062 | 0.999990 | 0.069557 |
5 | saliency_topk | True | (64, 64) | – | None | 60.157 | 0.999552 | 0.999991 | 0.062717 |
6 | ACO | True | (32, 32) | – | None | 64.567 | 0.999928 | 0.999997 | 0.022720 |
7 | ACO | True | (64, 64) | – | Jpeg | 59.697 | 0.999513 | 0.999990 | 0.069721 |
8 | ACO | True | – | 0.1 | None | 61.262 | 0.999804 | 0.999993 | 0.048630 |
9 | ACO | True | – | 0.2 | None | 58.222 | 0.999138 | 0.999986 | 0.097919 |
10 | ACO | True | – | 0.4 | None | 55.166 | 0.997822 | 0.999972 | 0.197926 |
