Table 8 Comparison between BER values due to Stirmark ® attacks
From: An imperceptible and robust audio watermarking algorithm
| Â | Algorithm | |||||
|---|---|---|---|---|---|---|
DCT based | SVD-STFT based | DWT based | DWT based | SVD-QIM based | SVD-DWT based | |
[[51]] | [[23]] | [[27]] | [[30]] | [[22]] | Proposed algorithm | |
AddBrumm (55Â Hz Sinus) | 1.25 | 0 | 15.79 | 0 | - | 0 |
AddSinus (3,000Â Hz sinus) | 0.77 | 0 | 0 | 0 | - | 0 |
AddNoise (20Â dB level) | 0.78 | 0 | 5.875 | 0 | 0 | 0 |
Stat1 (statistical distortion) | 0 | 0 | 0 | 9 | 0.1831 | 0 |
Stat2 (statistical distortion) | 0 | 0 | - | - | 0.7324 | 0 |
Smooth1 (simple smoothing) | 0 | 0 | 0 | 14 | 2.0874 | 0.853 |
Smooth2 (simple smoothing) | 0 | 0 | 0 | - | 1.0986 | 0.760 |
Amplify (increases amplitude by 50%) | 0 | 0.375 | 0 | 0 | - | 0 |
Invert (phase shift 180°) | 52.42 | 0 | 0 | 0 | 0 | 0 |
Exchange (swaps samples) | 0 | 0 | 0 | - | 0 | 4.74 |
CutSamples (7 samples per 1,000) | 100 | 1.5 | 0 | - | - | 2.20 |
LSBZero (sets LSBs to 0) | 0 | 0 | - | 0 | - | 0 |
ZeroCross (reset samples) | 0 | 0 | 0 | - | 0 | 0 |
ZeroRemove (removes 0 samples) | 100 | 0 | 0 | - | - | 0 |