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A New Wavelet Watermarking Based on Linear Bit Expansion  

Piao, Yong-Ri (부경대학교 정보통신공학과)
Kim, Seok-Tae (부경대학교 전자컴퓨터정보통신공학부)
Publication Information
The Journal of Korean Institute of Communications and Information Sciences / v.32, no.1C, 2007 , pp. 16-22 More about this Journal
Abstract
This study proposes a new wavelet watermark technique based on the Linear Bit Expansion. To ensure the security of the watermark, enlarged watermark by applying linear bit expansion is inserted in a given intensity to a low frequency subband of the image which is wavelet transformed after the Arnold Transformation. When detecting the presence of watermart F norm function is applied unlike the existing methods. The experiment results verify that the proposed watermarking technique has outstanding quality in regards to fidelity and robustness.
Keywords
Arnold Transform; Linear Bit-expansion; Wavelet transform; F norm Function;
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  • Reference
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