基于空域的嵌入式数字图像隐藏

在介绍了信息隐藏技术和数字图像的基本知识的基础上,本文首先讨论了置乱和融合技术的理论和实现途径,并提出了一种基于其上的数字图像隐藏方法,其中置乱技术是作为融合的前序步骤,对隐藏目标图像进行预处理和后处理,而融合技术将隐藏目标图像隐藏于隐藏载体图像之中,充分利用人们的“所见即所得“的心理,来迷惑恶意的攻击者.其次对上述方法的实现效果进行了检验和讨论,分析了它们的优缺点,然后介绍了软件的实现过程.实例分析证明,这种算法可以比较方便的实现,并且具有一定程度的鲁棒性,因此可以应用于实际.

Based on the Technologies of Scrambling and Harmonic Amalgamation

Based on the simple presents of knowledge on Information Hiding technology and Digital image, firstly, this paper indicates the technologies of Scrambling and Harmonic Amalgamation and realizing approach of them. We also put forward a scheme to solve them . In this scheme, scrambling technology is used as pre-process and post-process of digital image information hiding , and amalgamation is used to hide an image into the stego-cover one. Adequately utilize mentality of "WYSIWYG"(what you see is what you get) of the majority, the scheme can delude some baleful attacker. Secondly, through test and moot, we analysis the scheme's merits and flaws, then introduce the realization process of the software. The analysis testified that the algorithm can be expendiently realized and it is rocust in a certain extent. So it is a practicing scheme to be applied.