节点文献
Science Letters:A new asymmetric watermarking scheme based on a real fractional DCT-I transform
【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.
【关键词】 Asymmetric watermarking;
DCT-I;
Fractional transforms;
【Key words】 Asymmetric watermarking; DCT-I; Fractional transforms;
【Key words】 Asymmetric watermarking; DCT-I; Fractional transforms;
【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