| Authors | A. Khalfallah et al. (2006) | W. Puech et al. (2008) | Mohamed et al. (2019) | Proposed method |
| Calculed parameters | PSNR (dB) | PSNR (dB) | PSNR (dB) | PSNR (dB) |
| No attack | 34.2500 | 38.7500 | 33.0119 | 42.4562 |