Reversible Data Hiding Based on Multi-Dimension Difference-Histogram and Bilinear Interpolation

Yi-Chun Lin and Hsien-Chu Wu
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Yi-Chun Lin: National Taichung University of Science and Technology, Taichung, Taiwan
Hsien-Chu Wu: National Taichung University of Science and Technology, Taichung, Taiwan

International Journal of Technology and Engineering Studies, 2019, vol. 5, issue 2, 62-70

Abstract: A new difference-histogram modification Reversible Data Hiding (RDH) scheme by using bilinear interpolation prediction is proposed in this paper. First, the proposed method considers each neighboring pixels x and y to predict z by bilinear interpolation on four pixels which are near to pixel-pairs x and y. Then, according to d1 = x−y,d2 = y−zy, and d3 = z−zx, a new coordinate system (d1,d2,d3) is generated. In this three-dimensional coordinate, the proposed method uses six quadrants to embed secret information: points on the specified surface are used for embedding and the extending space surrounded the embedded surfaces are used for shifting. Finally, a new multi-dimension difference-pair-mapping is used to implement the reversible data embedding. Therefore, more embedding conditions are obtained, thereby increase the number of embedded pixels and get more embedding capacity.

Keywords: RDH; Histogram Shifting (HS); multi-dimension (search for similar items in EconPapers)
Date: 2019
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Persistent link: https://EconPapers.repec.org/RePEc:apa:ijtess:2019:p:62-70

DOI: 10.20469/ijtes.5.10005-2

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