Research Article
DWT versus WP Based Optical Color Image Encryption Robust to Composite Attacks
Table 2
Performance metrics for DWT versus WP based proposed techniques without using filters.
| Technique | Performance metrics | Entropy of DI | Elapsed time (Sec) | | MSE | NMSE | PSNR (dB) | UACI | NPCR |
| Traditional FFT | 7.2628 | 0.5007 | 0.1557 | 15828 | 1 | 6.1365 | 28.317 | 0.00074 | Traditional DCT | 7.2638 | 0.7704 | 0.1545 | 15819 | 0.999 | 6.1391 | 28.221 | 0.00074 | Modified DWT | 5.9133 | 0.6259 | 0.4341 | 10495 | 0.663 | 7.9209 | 5.6079 | 0.00074 | First proposed | 5.9132 | 0.4907 | 0.4365 | 10446 | 0.660 | 7.9412 | 5.5848 | 0.00074 | Second proposed | 5.5161 | 0.7326 | 0.4526 | 10070 | 0.636 | 8.1005 | 0.8016 | 0.00074 | Third proposed | 5.5167 | 0.9310 | 0.4509 | 10101 | 0.638 | 8.0871 | 0.8815 | 0.00074 | Fourth proposed | 5.9201 | 1.9768 | 0.4354 | 10456 | 0.661 | 7.9370 | 5.5808 | 0.00074 | Fifth proposed | 5.5170 | 2.5886 | 0.4510 | 10098 | 0.638 | 8.0884 | 0.8421 | 0.00074 | Sixth proposed | 5.5175 | 11.975 | 0.4506 | 10104 | 0.638 | 8.0860 | 0.8273 | 0.00074 |
|
|