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一种高效有信水印算法

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摘要 本文提出了一种基于视觉失真和鲁棒性约束优化的高效有信图像水印算法。在定义鲁棒性和视觉失真测度的基础上,本文将有信嵌入目标表达为满足鲁棒性约束条件下最小化视觉距离的最优化问题,并通过理论推导得到最优的嵌入强度。大量的仿真实验表明,本文算法能在可接受的视觉失真前提下,获得1/256比特/像素的嵌入容量;且能以低2个数量级的嵌入时间,获得与目前同类最好算法可比拟的鲁棒性能。
作者 王春桃 张东
出处 《电子技术与软件工程》 2013年第16期112-114,共3页 ELECTRONIC TECHNOLOGY & SOFTWARE ENGINEERING
基金 国家自然科学基金(61202467和61100170) 教育部留学回国人员科研启动基金 华南农业大学校长基金 中央高校基本科研业务费中山大学青年教师培养项目(12lgpy37)
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