Research Article
General Framework of Reversible Watermarking Based on Asymmetric Histogram Shifting of Prediction Error
Table 2
The reduced effect of shifting distortion of asymmetric error histogram.
| Cover images | QS | | RSD | Tsai’s method | Proposed method | Tsai’s method | Proposed method |
| Lena | 105676 | 101691 | 5.251 | 2.471 | 3985 | Elaine | 109079 | 62008 | 7.953 | 4.184 | 47071 | Baboon | 111621 | 63112 | 17.46 | 8.687 | 48509 | Peppers | 107224 | 57351 | 6.600 | 3.472 | 49873 | Boat | 105576 | 56876 | 4.924 | 2.462 | 48700 | Jet | 84719 | 39103 | 1.738 | 0.5876 | 45616 |
| Average | 103980 | 63357 | 7.321 | 3.644 | 40626 |
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