Table 1 Comparing BER (%) of LQIM [20], Zareian’s method [16], and our method under different types of attacks, (Message length = 192 bits, MSSIM=0.9939)
From: Optimal watermark embedding combining spread spectrum and quantization
Method | VSA (ρ) | GLPF | Med. | JPEG (QF) | AWGN (σ n ) | S&P (p s ) | Blu. (l) | His. | Log. | ||||||
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
0.8 | 1.3 | 3×3 | 5×5 | 10 | 16 | 22 | 10 | 16 | 22 | 2.5 % | 2 | 4 | |||
LQIM | 0.3 | 4.2 | 3.7 | 39.6 | 0.7 | 0.1 | 0.0 | 5.9 | 10.9 | 19.6 | 22.3 | 0.0 | 15.2 | 45.3 | 23.4 |
Zareian’s | 4.3 | 4.0 | 13.7 | 35.7 | 29.3 | 20.4 | 15.9 | 17.8 | 26.6 | 33.4 | 34.9 | 8.6 | 22.4 | 31.4 | 11.9 |
Ours | 0.5 | 7.6 | 1.1 | 21.3 | 4.6 | 0.4 | 0.1 | 0.1 | 1.3 | 9.8 | 8.4 | 0.0 | 5.0 | 29.9 | 8.7 |