该技术在水印嵌入时,由混沌系统生成水印序列,并在离散小波变换的低频子带上嵌入水印,保证了水印的鲁棒性。
While embedding watermarking, the watermarking sequences are produced by the chaos system, and are embedded into the low frequent coefficient of DWT domain to guarantee the robustness of watermarking.
采用二维离散混沌模型,研究了从混沌序列到加密因子序列的映射方法。
Mapping method about chaotic sequence is researched to encryption factor sequence using two-dimensional discrete chaotic model.
该算法利用混沌序列筛选数据库记录数据项,筛选出的数据项不依赖于其他的元组,成离散的分布状态。
The algorithm uses the chaos sequence select data items of records, selected items is not dependent on the other records and distribute by discrete;
研究了一类具有良好隐蔽性的一元三次离散动力系统的混沌序列产生情况,提出了混沌序列的异或和置乱加密算法。
The chaos sequence procedure of a kind of discrete dynamic system with good concealing feature is studied, and two algorithms about chaos sequence are provided.
研究了离散时间动态系统混沌序列的统计特性。
This paper analysed the statistic property of chaotic sequence generated by a widely studied discrete time dynamic system, Logistic_Map.
研究了离散时间动态系统混沌序列的统计特性。
This paper analysed the statistic property of chaotic sequence generated by a widely studied discrete time dynamic system, Logistic_Map.
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