高效大容量隐写技术（multimedia）---用户6869393

表征现代隐写技术的性能指标包括容量(即可以隐藏在覆盖介质中的数据量)、隐写质量(即工件可见性)、安全性(即不可探测性)和强度或健壮性(用于抵抗旨在破坏秘密消息的主动攻击)。基于斐波那契的嵌入技术已经在文献中被研究和提出，以实现高效的隐写术，在容量方面相对于隐写质量。本文提出了一种利用位平面映射代替位平面置换来扩展类隐写术的创新思想。我们提出的算法增加了嵌入容量，使用位平面映射将秘密信息的两个位嵌入到封面像素的三个位中，以牺牲隐写质量的边际损失为代价。虽然现有的斐波那契嵌入算法由于Zeckendorf定理的限制，没有使用一定的覆盖物强度来进行嵌入，但是我们的方案解决了这个问题，使得所有的强度值都可以作为嵌入的候选。实验结果表明，与现有的斐波那契方法相比，该方法的嵌入容量提高了一倍，并且对RS、POV和差分图像直方图(DIH)等统计攻击具有较好的安全性。

原文题目：Efficient High Capacity Steganography Technique

原文：Performance indicators characterizing modern steganographic techniques include capacity (i.e. the quantity of data that can be hidden in the cover medium), stego quality (i.e. artifacts visibility), security (i.e. undetectability), and strength or robustness (intended as the resistance against active attacks aimed to destroy the secret message). Fibonacci based embedding techniques have been researched and proposed in the literature to achieve efficient steganography in terms of capacity with respect to stego quality. In this paper, we investigated an innovative idea that extends Fibonacci-like steganography by bit-plane(s) mapping instead of bit-plane(s) replacement. Our proposed algorithm increases embedding capacity using bit-plane mapping to embed two bits of the secret message in three bits of a pixel of the cover, at the expense of a marginal loss in stego quality. While existing Fibonacci embedding algorithms do not use certain intensities of the cover for embedding due to the limitation imposed by the Zeckendorf theorem, our proposal solve this problem and make all intensity values candidates for embedding. Experimental results demonstrate that the proposed technique double the embedding capacity when compared to existing Fibonacci methods, and it is secure against statistical attacks such as RS, POV, and difference image histogram (DIH).

原文作者：Alan Anwer Abdulla, Sabah A. Jassim, Harin Sellahewa

原文链接：https://arxiv.org/abs/2004.11984