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

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【作者】 桂国富蒋铃鸽何晨

【Author】 GUI Guo-fu, JIANG Ling-ge, HE Chen (Department of Electronic Engineering, Shanghai Jiao Tong University, Shanghai 200240, China)

【机构】 Department of Electronic Engineering Shanghai Jiao Tong University Shanghai 200240 ChinaDepartment of Electronic EngineeringShanghai Jiao Tong University Shanghai 200240 China

【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 em-bedding 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.

【基金】 Project (Nos. 60372076 and 60272082) supported by the National Natural Science Foundation of China
  • 【文献出处】 Journal of Zhejiang University Science A(Science in Engineering) ,浙江大学学报A(应用物理及工程版)(英文版) , 编辑部邮箱 ,2006年03期
  • 【分类号】TN911.7
  • 【被引频次】3
  • 【下载频次】41
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