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10 January 2014 Analyzing the effect of the distortion compensation in reversible watermarking
Suah Kim, Hyoung Joong Kim
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Proceedings Volume 9069, Fifth International Conference on Graphic and Image Processing (ICGIP 2013); 90690P (2014) https://doi.org/10.1117/12.2050219
Event: Fifth International Conference on Graphic and Image Processing, 2013, Hong Kong, China
Abstract
Reversible watermarking is used to hide information in images for medical and military uses. Reversible watermarking in images using distortion compensation proposed by Vasily et al [5] embeds each pixel twice such that distortion caused by the first embedding is reduced or removed by the distortion introduced by the second embedding. In their paper, because it is not applied in its most basic form, it is not clear whether improving it can achieve better results than the existing state of the art techniques. In this paper we first provide a novel basic distortion compensation technique that uses same prediction method as Tian’s [2] difference expansion method (DE), in order to measure the effect of the distortion compensation more accurately. In the second part, we will analyze what kind of improvements can be made in distortion compensation.
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Suah Kim and Hyoung Joong Kim "Analyzing the effect of the distortion compensation in reversible watermarking ", Proc. SPIE 9069, Fifth International Conference on Graphic and Image Processing (ICGIP 2013), 90690P (10 January 2014); https://doi.org/10.1117/12.2050219
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KEYWORDS
Distortion
Digital watermarking
Feature extraction
Medical imaging
Data hiding
Image processing
Information security
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