Table 1 |
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|
Biometric signal retrieval results for the stego-object of Figure 3(e), under different combinations of compression ratios and BERs. |
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|
Initial fingerprint |
JPEG compression |
Factor |
BER1 (3×10-4) |
BER2 (1×10-3) |
BER3 (3×10-3) |
|
PSNR (dB) |
39.9 |
38.4 |
36.1 |
||
|
|
Ratio: 2.6 |
Retrieved fingerprint |
|
|
|
|
PSNR (dB) |
37.7 |
35.9 |
34.2 |
||
|
Ratio: 5.1 |
Retrieved fingerprint |
|
|
|
|
|
|
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|
Ntalianis et al. EURASIP Journal on Information Security 2011 2011:174945 doi:10.1155/2011/174945 |
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