DWT Based Blind Watermark in Relational Database

Yi Liu; Juan Wang

doi:10.4028/www.scientific.net/AMR.760-762.2123

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HomeAdvanced Materials ResearchAdvanced Materials Research Vols. 760-762DWT Based Blind Watermark in Relational Database

DWT Based Blind Watermark in Relational Database

Abstract:

Aiming to balance the robustness and imperceptibility of database watermark, propose a wavelet transform (DWT) based blind watermarking algorithm. The algorithm screens candidate attributes that can be embedded watermark and conducts subset segmentation and rearrangement, and then performs DWT transformation to the data subsets and the scrambled watermark image respectively. Embed the compressed low-frequency part of the watermark into the High-frequency part of the data set to achieve data fusion. Theoretical analysis and experiments show that the algorithm enjoys strong robustness and good invisibility.

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Periodical:

Advanced Materials Research (Volumes 760-762)

Pages:

2123-2128

DOI:

https://doi.org/10.4028/www.scientific.net/AMR.760-762.2123

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Online since:

September 2013

Authors:

Yi Liu, Juan Wang

Keywords:

Condensation, Digital Watermark, Relation Database, Robustness, Wavelet Transformation

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