直方图平移的自适应大容量可逆水印算法

doi:10.3969/j.issn.1001-2400.2014.01.022

Abstract

Abstract:

The traditional histogram shifting based reversible watermarking algorithm can only embed at most 1.0 bit watermark information into one pixel in single-pass embedding. Therefore, we have to use multi-pass embedding to achieve a higher embedding capacity. However, in the second-pass and the subsequent embedding process, the prediction error will be affected by the embedding distortion, which reduces the embedding efficiency. To this end, this paper proposes an improved reversible watermarking algorithm by employing histogram shifting. The algorithm embeds 1.0 bit or more bit watermark in one pixel in terms of the context of image. Experimental results show that the algorithm can effectively improve the embedding capacity while maintaining a high image quality.

Key words: adaptive, reversible watermarking, histogram shifting

CLC Number:

TN911.73

WANG Xiang;LI Ke;FU Kaiyuan;LUO Fan. Histogram shifting based adaptive reversible watermarking algorithm with a high capacity[J].J4, 2014, 41(1): 124-129.

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Histogram shifting based adaptive reversible watermarking algorithm with a high capacity

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