摘要
算法是以混沌系统产生的实数序列为水印,结合HVS模型,将水印嵌入8×8DCT的中频系数中。实验结果证明,该算法具有较强的鲁棒性,水印检测结果正确。算法采用混沌序列为水印信号,具有易产生、数量多,保密性好的优点,可以有效地解决实际应用中大量数字水印产生的问题及数字水印标准化问题,有利于数字水印技术走向实际应用。
An algorithm is proposed, which real number produced by chaotic system as watermarking signal is embedded in 8×8 DCT intermediate frequency coefficient with HVS model as reference. The experimental results show that the algorithm has better robustness and fight test conclusion. The adoption of chaotic sequence watermark can meet the tremendous demand in the applications and the standardization of watermark signals for its easily producing, large quantity and security. Chaotic watermark signal will help watermarking technology come into realization.
出处
《计算机工程与设计》
CSCD
北大核心
2007年第16期3943-3944,3948,共3页
Computer Engineering and Design
基金
南京信息工程大学科研基金项目(Y505)
