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Pairwise Prediction-Error Expansion for Efficient Reversible Data Hiding
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DOI：10.1109/TIP.2013.2281422.png)
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摘要
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In prediction-error expansion (PEE) based reversible data hiding, better exploiting image redundancy usually leads to a superior performance. However, the correlations among prediction-errors are not considered and utilized in current PEE based methods. Specifically, in PEE, the prediction-errors are modified individually in data embedding. In this paper, to better exploit these correlations, instead of utilizing prediction-errors individually, we propose to consider every two adjacent prediction-errors jointly to generate a sequence consisting of prediction-error pairs. Then, based on the sequence and the resulting 2D prediction-error histogram, a more efficient embedding strategy, namely, pairwise PEE, can be designed to achieve an improved performance. The superiority of our method is verified through extensive experiments.
Keyword:
Pairwise prediction-error expansion (pairwise PEE)
reversible data hiding (RDH)
2D prediction-error histogram (2D PEH)
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IF:
13.7
论文数:
1.0W
被引数:
8.4W
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Reversible image watermarking on prediction errors by efficient histogram modification.png)
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