Cryptanalysis and Improvement of the Robust and Blind Watermarking Scheme for Dual Color Image

With more color images being widely used on the Internet, the research on embedding color watermark image into color host image has been receiving more attention. Recently, Su et al. have proposed a robust and blind watermarking scheme for dual color image, in which the main innovation is the using...

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Bibliographic Details
Published in:Mathematical problems in engineering 2015-01, Vol.2015 (2015), p.1-10
Main Authors: Zhang, Yushu, Li, Ming, Qian, Jiye, Yang, Weibin, Fang, Bin, Nan, Hai, Liu, Yi
Format: Article
Language:English
Subjects:
Blinds
Color
Color imagery
Copyright
Cryptography
Image enhancement
Internet
Mathematical analysis
Receiving
Robustness
Security
Watermarking
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Summary:With more color images being widely used on the Internet, the research on embedding color watermark image into color host image has been receiving more attention. Recently, Su et al. have proposed a robust and blind watermarking scheme for dual color image, in which the main innovation is the using of two-level DCT. However, it has been demonstrated in this paper that the original scheme in Su’s study is not secure and can be attacked by our proposed method. In addition, some errors in the original scheme have been pointed out. Also, an improvement measure is presented to enhance the security of the original watermarking scheme. The proposed method has been confirmed by both theoretical analysis and experimental results.
ISSN:1024-123X
1563-5147
DOI:10.1155/2015/526174