摘要
传统的可逆隐藏（Reversible Data Hiding，RDH）算法希望在嵌入信息后有较高的峰值信噪比值（Peak—Signal—to—Noise—Ratio，PsNR），最近文献[1]提出应追求更高的图像可视性的观点。基于此观点，其提出一种新的RDH算法，此算法使用图像均衡代替PSNR标准，拥有较好的可视性的优点。然而，嵌入量增大会导致图像对比度增强过度，限制了图像的嵌入量。为解决此问题，提出一种新的分组平移的可逆隐藏算法，该算法对图像的直方图进行分析分组和平移，能够大大增加嵌入层数，提高嵌入量，并通过MATLAB仿真进行验证。
After information is embeded, traditional Reversible Data Hiding （RDH） algorithm is expected to have a higher Peak-Signal-to-Noise-Ratio （PSNR）. Recent lisereture proposed higher image visibility. Based on this point, they proposed a new RDH algorithm, which used image equalization to take the place of PSNR standard and had better image visibility. However, the increase of the embedding message can lead to excessive image contrast en- hancement, which limits the amount of embedded image. In order to solve this problem, proposes a new reversible algorithm with packet stansmission,which can greatly increase the embedded layers, improve the embedding quantity. Validate it by MATLAB simulation.
作者
丁义涛
DING Yitao(Postgraduate Brigade,Engineering University of PAP, Xi~an 710086, China)
出处
《武警工程大学学报》
2017年第2期62-66,共5页
Journal of Engineering University of the Chinese People＇s Armed Police Force
关键词
图像均衡
分组平移
直方图平移
信息隐藏
image equalization
packet transmission
histogram shifting
data hiding
