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A new asymmetric watermarking scheme based on a real fractional DCT-I transform

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Abstract

A new asymmetric watermarking scheme is proposed in this letter. In the proposed scheme, a secret real fractional DCT-I transform and a primitive watermark are employed to generate an asymmetric watermark. The secret watermark for embedding is derived from the primitive watermark, and is embedded in the large fractional DCT-I transformation coefficients of a cover signal. The asymmetric detection procedure is performed using a correlation test. Simulation results showed that the asymmetric detection is reliable, and that the scheme can provide minimum security.

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Authors and Affiliations

  1. Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai, 200240, China

    Gui Guo-fu  (桂国富), Jiang Ling-ge  (蒋铃鸽) & He Chen  (何晨)

Authors
  1. Gui Guo-fu  (桂国富)
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  2. Jiang Ling-ge  (蒋铃鸽)
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  3. He Chen  (何晨)
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Additional information

Project (Nos. 60372076 and 60272082) supported by the National Natural Science Foundation of China

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Gui, Gf., Jiang, Lg. & He, C. A new asymmetric watermarking scheme based on a real fractional DCT-I transform. J. Zhejiang Univ. - Sci. A 7, 285–288 (2006). https://doi.org/10.1631/jzus.2006.A0285

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  • DOI: https://doi.org/10.1631/jzus.2006.A0285

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