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IMPROVED PAIRWISE PIXEL-VALUE-ORDERING FOR HIGH-FIDELITY REVERSIBLE DATA HIDING

Citation Author(s):
Ioan-Catalin Dragoi, Ion Caciula, Dinu Coltuc
Submitted by:
Ioan-Catalin DRAGOI
Last updated:
6 October 2018 - 8:51am
Document Type:
Poster
Document Year:
2018
Event:
Presenters:
Ioan Catalin Dragoi
Paper Code:
2145
 

Pixel-value-ordering (PVO) appears as an efficient technique for high-fidelity reversible data hiding. This paper proposes a reversible data hiding scheme based on the pairwise PVO framework with improved difference equations. Both the pixel pair selection and the embedding algorithms are also streamlined. The proposed scheme uses a block classification approach based on a local complexity metric. Uniform blocks are processed using the proposed improved pairwise PVO algorithm. Slightly noisy blocks are embedded using a classic PVO scheme and noisy blocks are kept unchanged. The optimal embedding parameters for a given capacity are determined by linear programming. The proposed pairwise PVO approach outperforms other state-of-the-art schemes.

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