Advances, Systems and Applications
Table 9 Steganographic Lena image after JPEG compression and BER, NC result of an extracted stego-text
From: Digital image watermarking using discrete cosine transformation based linear modulation
Compressed ratio | PSNR | Stego-text BER | Stego-text NC |
|---|---|---|---|
Q = 90 | 39.61 dB | 1.57% | 0.9872 |
Q = 70 | 38.42 dB | 1.69% | 0.9867 |
Q = 30 | 36.64 dB | 3.47% | 0.9681 |