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Conference Paper
Improved Watermark Estimation Scheme Based on Neighborhood Filter
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- Authors
- Tae-Woo Oh, Seung-Jin Ryu, Ji-Won Lee, Won-Young Yoo, Heung-Kyu Lee
- Issue Date
- 2010-10
- Citation
- International Conference on Intelligent Information Hiding and Multimedia Signal Processing (IIH-MSP) 2010, pp.55-58
- Language
- English
- Type
- Conference Paper
- Abstract
- This paper introduces a new watermark estimation scheme for an additive watermark embedding model in spatial domain. Unlike traditional estimating filters only considering spatially adjacent pixels, the proposed method takes into account pixels which are both in close intensity value and spatially near distance. Thus, it is possible for the proposed method to estimate stably the watermark signal from a watermarked image that severely fluctuates in intensity value. Also, this paper proposes the preprocessing method that boosts the performance of our watermark estimation filter by suppressing host signal noises. Extensive experimental results show that the proposed method outperforms the traditional filters under various attacks. © 2010 IEEE.
- KSP Keywords
- Adjacent pixels, Embedding model, spatial domain, watermark embedding, watermarked image