한국정보컨버전스학회:학술대회논문집
- 2008.06a
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- Pages.93-97
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- 2008
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- 2005-0674(pISSN)
Wavelet-Based Semi-Fragile Watermarking with Tamper Detection
- Lee, Jun-Hyuk (Graduate School of Computer Engineering, YeungNam University) ;
- Jung, Hun (Graduate School of Computer Engineering, YeungNam University) ;
- Seo, Yeung-Su (Graduate School of Computer Engineering, YeungNam University) ;
- Yu, Chun-Gun (Graduate School of Computer Engineering, YeungNam University) ;
- Park, Hae-Woo (Graduate School of Computer Engineering, YeungNam University)
- Published : 2008.06.20
Abstract
In this letter, a novel wavelet-based semi-fragile watermarking scheme is presented which exploiting the time-frequency feature of chaotic map. We also analyze the robustness to mild modification and fragility to malicious attack of our scheme. Its application includes tamper detection, image verification and copyright protection of multimedia content. Simulation results show the scheme can detect and localize malicious attacks with high peak signal-to-noise ratio(PSNR), while tolerating certain degree of JPEG compression and channel additive white Gaussian noise(AWGN)