1 July 2008 Secure multimedia watermarking authentication in wavelet domain
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J. of Electronic Imaging, 17(3), 033010 (2008). doi:10.1117/1.2954129
Abstract
With the wide application of multimedia data, multimedia content protection becomes urgent. Until now, various means have been reported that can be classified into several types according to their functionalities, such as data encryption, digital watermarking, or data authentication. They are used to protect multimedia data's confidentiality, ownership, and integrity, respectively. A wavelet-based multifeature semifragile multimedia authentication scheme is proposed. According to the approximation component and the energy relationship between the subbands of the detail component, global feature and local feature are both generated. Then, the global watermark and local watermark are generated from global feature and local feature, respectively. Two watermarks are then embedded into the multimedia data themselves, in the wavelet domain. Both the feature extraction and embedding processes are controlled by secret keys to improve the security of the proposed scheme. On the receiver side, the extracted watermark and the one generated from the received image are compared to determine the tampered location. A new authentication method is designed, and it is proved valid in the experiments. This authentication scheme is robust to general compression; sensitive to cutting, pasting, or modification; efficient in real-time operation; and secure for practical applications.
Jinwei Wang, Shiguo Lian, Guangjie Liu, Yuewei Dai, Zhongxuan Liu, Zhen Ren, "Secure multimedia watermarking authentication in wavelet domain," Journal of Electronic Imaging 17(3), 033010 (1 July 2008). http://dx.doi.org/10.1117/1.2954129
JOURNAL ARTICLE
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KEYWORDS
Digital watermarking

Multimedia

Feature extraction

Quantization

Wavelets

JPEG2000

Discrete wavelet transforms

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