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Reference Sharing Mechanism for Watermark Self-Embedding

Reference Sharing Mechanism for Watermark Self-Embedding,10.1109/TIP.2010.2066981,IEEE Transactions on Image Processing,Xin-Peng Zhang,Shuozhong Wang,

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Reference Sharing Mechanism for Watermark Self-Embedding   (Citations: 1)
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This paper proposes two novel self-embedding water- marking schemes based upon a reference sharing mechanism, in which the watermark to be embedded is a reference derived from the original principal content in different regions and shared by these regions for content restoration. After identifying tampered blocks, both the reference data and the original content in the reserved area are used to recover the principal content in the tampered area. By using the first scheme, the original data in five most significant bit layers of a cover image can be recovered and the original watermarked image can also be retrieved when the content replacement is not too extensive. In the second scheme, the host content is decomposed into three levels, and the reference sharing methods with different restoration capabilities are em- ployed to protect the data at different levels. Therefore, the lower the tampering rate, the more levels of content data are recovered, and the better the quality of restored results.
Journal: IEEE Transactions on Image Processing , vol. 20, no. 2, pp. 485-495, 2011
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    • ...References [20] and [21] propose a reference-sharing mechanism avoiding the tampering coincidence problem, in which the watermark to be embedded is a reference derived from the principal content in different regions and shared by these regions for content restoration...
    • ...We generated the watermarked images using the proposed scheme and the methods in [19], [20], and [21], modified the content in the left of the watermarked images with various percentages, and then recovered the original content from the tampered images...
    • ...With the hierarchical watermarking method in [21], the host principal content is decomposed into content...
    • ...Also, the proposed scheme significantly outperforms the methods in [19], [20], and [21] when the tampering percentage is less than 45%...

    Xinpeng Zhang, et al. Watermarking With Flexible Self-Recovery Quality Based on Compressive ...

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