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Color image authentication based on spatiotemporal chaos and SVD

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  • Peng, Zhenni
  • Liu, Wenbo

Abstract

In this paper, a new semi-fragile watermarking scheme for color image authentication is proposed based on spatiotemporal chaos and SVD (singular value decomposition). Wavelet transform is applied to watermarking. In contrast to conventional approaches where the watermark is embedded directly on the wavelet coefficients, we embed the watermark onto the SVs (singular values) of the blocks within wavelet subband. In order to enhance the security, spatiotemporal chaos is employed to select the embedding positions for each watermark bit as well as for watermark encryption. The experiment results show that the proposed scheme is able to identify malicious attacks to the image, while is robust to JPEG compression. And due to the sensitivity to the initial conditions of the spatiotemporal chaos, the security of the scheme is greatly improved.

Suggested Citation

  • Peng, Zhenni & Liu, Wenbo, 2008. "Color image authentication based on spatiotemporal chaos and SVD," Chaos, Solitons & Fractals, Elsevier, vol. 36(4), pages 946-952.
    • Handle: RePEc:eee:chsofr:v:36:y:2008:i:4:p:946-952
    DOI: 10.1016/j.chaos.2006.07.015
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    References listed on IDEAS

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    1. Feng, Guo-rui & Jiang, Ling-ge & He, Chen & Xue, Yi, 2006. "Chaotic spread spectrum watermark of optimal space-filling curves," Chaos, Solitons & Fractals, Elsevier, vol. 27(3), pages 580-587.
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    Cited by:

    1. Sidiropoulos, Panagiotis & Nikolaidis, Nikos & Pitas, Ioannis, 2009. "Invertible chaotic fragile watermarking for robust image authentication," Chaos, Solitons & Fractals, Elsevier, vol. 42(5), pages 2667-2674.
    2. Gao, Tiegang & Gu, Qiaolun & Emmanuel, Sabu, 2009. "A novel image authentication scheme based on hyper-chaotic cell neural network," Chaos, Solitons & Fractals, Elsevier, vol. 42(1), pages 548-553.
    3. Lian, Shiguo, 2009. "Efficient image or video encryption based on spatiotemporal chaos system," Chaos, Solitons & Fractals, Elsevier, vol. 40(5), pages 2509-2519.

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