摘要
提出了一种新的基于图像的信息隐藏技术,可以在图像的每个位平面都实现信息的嵌入。该技术基于如下假定:即图像中的颜色分量值在某个较小的区域内变动时,人眼几乎察觉不到该图像的失真。由此,通过给各个位平面设定一个可变化区域,在这些区域中颜色分量值的轻微变化便可引起某个位平面在0与1之间发生转换,这样便可在这些区域中实现信息的藏匿。另外还从安全性及隐藏信息量方面对其进行了分析,并通过实验显示了在图像中嵌入信息后的的效果。
A new information hiding technology for RGB images is proposed based on multi-sections of them. Since the slight changes of all available values of color partials-values R, G, B are nearly imperceptible to the human eye, the small sections of some special values of it can be designed. And the changes of these values must result in the alteration of certain bit of themselves. By doing so, it can arrive at the aim of hiding information in the images. Besides,the security and capacity of the technology is analyzed by comparing with LSB algorithm, and an experiment is done to show its performance.
出处
《计算机应用研究》
CSCD
北大核心
2005年第9期165-166,179,共3页
Application Research of Computers
基金
国家自然科学基金资助项目(60272091
60373109)
关键词
信息隐藏
多区域
LSB
位平面
Information Hiding
Multi-sections
LSB
Bit-plane
