Table 1 Performance comparison of five predictors
From: Non-integer expansion embedding techniques for reversible image watermarking
Predictors | Lena | Baboon | Fishingboat | F16 | ||||
|---|---|---|---|---|---|---|---|---|
μ | σ | μ | σ | μ | σ | μ | σ | |
4.6724 | 7.8454 | 18.4130 | 27.6633 | 7.2441 | 11.1876 | 5.2971 | 11.9235 | |
Integer MED predictor [14] | 4.3407 | 6.9049 | 13.5220 | 19.6804 | 6.3836 | 9.3957 | 3.4273 | 6.2054 |
Non-integer MED predictor [33] | 4.3060 | 6.7608 | 13.3652 | 19.2567 | 6.5863 | 9.7152 | 3.6089 | 6.6339 |
Sachnev’s predictor [15] | 3.2063 | 4.8738 | 10.9786 | 15.6010 | 5.2220 | 7.7943 | 2.7578 | 4.8683 |
Proposed predictor | 3.2049 | 4.8565 | 10.9782 | 15.5957 | 5.2209 | 7.7847 | 2.7465 | 4.8515 |