Enhancing Detection of Digital Watermark against Resampling Attacks by Analyzing Periodicity of Interpolation

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Digital watermarking is one of the most fundamental techniques to protect copyright of digital contents. However, many watermarking systems are still weak against resampling attacks. In this paper, we propose a reinforcement scheme to complement conventional image watermarking systems by analyzing the periodic property of the interpolation. We first classify type of resampling regardless of embedded watermark. Then, the resampled image is reversely recovered to detect the embedded watermark. Empirical evidence from a large database of test images with three watermark systems demonstrates robustness to geometrical distortions such as scaling and rotation regardless of the watermarking systems.
Publisher
IEEE
Issue Date
2012-04-11
Language
English
Citation

IEEE, Int. Conf. on Systems, Signals and Image Processing(IWSSIP’2012), pp.64 - 67

URI
http://hdl.handle.net/10203/169245
Appears in Collection
CS-Conference Papers(학술회의논문)

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