Table 12 Robustness to scaling attacks.
From: Robust zero-watermarking for color images using hybrid deep learning models and encryption
Attack name | Nearest interpolation | ||||
|---|---|---|---|---|---|
Factor | 0.5 + 2 | 2 + 0.5 | 0.25 + 4 | 4 + 0.25 | |
Avion | PSNR NCC | 36.0454 1.0000 | Inf 1.0000 | 34.2342 1.0000 | Inf 1.0000 |
Jelly | PSNR NCC | 36.9019 0.9990 | Inf 0.9996 | 34.7644 1.0000 | Inf 0.9996 |
Baboon | PSNR NCC | 30.7370 0.9995 | Inf 0.9973 | 29.5453 1.0000 | Inf 0.9973 |
Sailboat | PSNR NCC | 32.7591 1.0000 | Inf 1.0000 | 31.5071 1.0000 | Inf 1.0000 |
Female | PSNR NCC | 39.8449 1.0000 | Inf 1.0000 | 36.5545 1.0000 | Inf 1.0000 |
Splash | PSNR NCC | 38.3154 1.0000 | Inf 1.0000 | 36.4175 1.0000 | Inf 1.0000 |
Porthead | PSNR NCC | 39.0284 1.0000 | Inf 1.0000 | 35.7365 1.0000 | Inf 1.0000 |
Bilinear interpolation | |||||
Avion | PSNR NCC | 35.9792 1.0000 | 41.0237 1.0000 | 33.5279 1.0000 | 41.3388 1.0000 |
Jelly | PSNR NCC | 38.3378 0.9995 | 45.5895 0.9995 | 35.0016 1.0000 | 45.9576 0.9995 |
Baboon | PSNR NCC | 30.4251 0.9991 | 32.3272 0.9991 | 29.7106 1.0000 | 32.5467 0.9991 |
Sailboat | PSNR NCC | 33.1864 1.0000 | 36.2117 1.0000 | 31.7778 1.0000 | 36.4816 1.0000 |
Female | PSNR NCC | 41.9500 1.0000 | 50.7906 1.0000 | 36.3490 1.0000 | 51.1281 1.0000 |
Splash | PSNR NCC | 38.6732 1.0000 | 43.0935 1.0000 | 35.8353 1.0000 | 43.3467 1.0000 |
Porthead | PSNR NCC | 40.7395 1.0000 | 49.1285 1.0000 | 35.8359 1.0000 | 49.3445 1.0000 |
Bicubic interpolation | |||||
Avion | PSNR NCC | 37.4623 1.0000 | 46.2194 1.0000 | 34.2027 1.0000 | 46.5612 1.0000 |
Jelly | PSNR NCC | 41.3696 0.9996 | 54.1246 0.9995 | 36.0855 0.9991 | 55.3283 0.9996 |
Baboon | PSNR NCC | 30.7058 0.9991 | 35.7239 0.9986 | 29.8809 1.0000 | 35.9024 0.9986 |
Sailboat | PSNR NCC | 33.7986 1.0000 | 40.1902 1.0000 | 32.1883 1.0000 | 40.3911 1.0000 |
Female | PSNR NCC | 47.7747 1.0000 | 58.8018 1.0000 | 37.8796 1.0000 | 60.7623 1.0000 |
Splash | PSNR NCC | 39.7790 1.0000 | 47.6179 1.0000 | 36.6511 1.0000 | 48.0472 1.0000 |
Porthead | PSNR NCC | 46.2508 1.0000 | 57.3491 1.0000 | 37.0242 1.0000 | 59.1332 1.0000 |
