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Enhanced Watermarking Scheme Based on Removal of Local Means

Hyun Soo KangContact Information, Jin Woo HongContact Information and Kwang Yong KimContact Information

(6)  Graduate School of AIM, Chung-Ang University, 221, Heuksuk-dong, 156-070 Dongjak-ku, Seoul, Korea
(7)  Broadcasting Media Research Department, ETRI, 161 Gajeong-Dong, 305-350 Yuseong-Gu, Daejeon, Korea
Abstract
This paper presents a new watermarking scheme to reduce the detection error probability through removal of local mean values of an original signal. It will be analytically proven that the removal process plays role in reducing the interference between an original signal and a watermark to be embedded. This is simply based on the orthogonality of the DC signal and the AC signal. As a result, the process improves the ability of the right detection. The proposed method is analytically and empirically evaluated with no attack as well as JPEG compression attacks.

Contact Information Hyun Soo Kang
Email: hskang@cau.ac.kr

Contact Information Jin Woo Hong
Email: jwhong@etri.re.kr

Contact Information Kwang Yong Kim
Email: kwangyk@etri.re.kr
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