We use the concept of relative entropy to judge the security of some stego-systems, and the experiments indicate the high security of these systems. We will improve on the traditional LSB technique to increase the capacity.
我们将利用相对熵的概念来确定几个典型隐写系统的安全性，实验数据表明这些系统的安全性是很高的；本文还对传统的最低有效位替换法进行改进，从而可以大幅度提高隐写容量。
参考来源 - 几种典型隐写系统安全性研究·2,447,543篇论文数据，部分数据来源于NoteExpress
在此模型中，把错误概率和检测率作为失真约束，运用博弈论的方法分析了博弈双方在不同失真约束条件下的隐写容量。
Then the author give a proof of the hiding capacity under the condition of no attack, and discuss the characteristic of the model.
视频数字隐写具有隐藏容量大的优点，但是通常在获得隐藏容量的同时，却忽视了安全性。
Video steganography has the advantage of large embedding capacity, but the security is usually neglected when obtain the capacity.
从水印的通信模型建立，水印的相关检测模型，到信息隐藏容量分析，隐写术的安全性理论，详细介绍了水印的相关理论；
Theories related to watermark are introduced in detail, including communication model, related detection model, hiding information capacity analysis and security of steganography.
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