Threshold controlled scheme of difference expansion techniques for reversible watermarking |
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Authors: | Li-jun Jiang Xiao-tao Guo Hao Yang Jun Zhao Zhuang Tian-ge |
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Institution: | Department of Biomedical Engineering, Shanghai Jiaotong University, Shanghai 200240, China |
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Abstract: | Since Tian Jun proposed the difference expansion embedding technique, based on which, many reversible watermarking techniques
were proposed. However, these methods do not perform well when the payload is high. In this paper, we proposed an expandable
difference threshold controlled scheme for these three methods. Experiments show that our scheme improves the performance
of these three methods for heavy payload. |
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Keywords: | |
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