Research Article
Improving Robustness of Biometric Identity Determination with Digital Watermarking
Table 2
The mean bit error rate of the final template and the mean peak signal-to-noise ratio [dB] of the watermarked image for different JPEG quality levels.
| | JPEG 100 | JPEG 90 | JPEG 80 | | BER | PSNR | BER | PSNR | BER | PSNR |
| Orig (40%) | 0.08 | 45.6 | 0.06 | 45.6 | 0.06 | 45.6 | Sepia (40%) | 0.16 | 45.6 | 0.13 | 45.6 | 0.19 | 45.6 | FR (40%) | 0.10 | 45.6 | 0.11 | 45.6 | 0.26 | 45.0 |
| Orig (50%) | 0.06 | 43.5 | 0.07 | 43.5 | 0.07 | 43.5 | Sepia (50%) | 0.13 | 43.5 | 0.12 | 43.5 | 0.12 | 43.5 | FR (50%) | 0.06 | 43.4 | 0.10 | 43.4 | 0.11 | 43.4 |
| Orig (60%) | 0.08 | 42.2 | 0.07 | 42.2 | 0.07 | 42.2 | Sepia (60%) | 0.17 | 42.2 | 0.11 | 42.2 | 0.11 | 42.2 | FR (60%) | 0.06 | 42.0 | 0.08 | 42.0 | 0.11 | 42.0 |
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