一种大容量的图像可逆信息隐藏算法  

A new reversible data hiding of high capacity for image

作　　者：高铁杠[1] 顾巧论[2] 

机构地区：[1]南开大学软件学院,天津300071 [2]上海交通大学安泰管理学院,上海200052

出　　处：《光电子．激光》2008年第5期663-666,共4页Journal of Optoelectronics·Laser

基　　金：天津市自然科学基金重点项目资助项目(07JCZDJC06600);中国博士后科学基金资助项目(20060390626)

摘　　要：提出了一种大容量的可逆信息隐藏算法的详细实现方案。利用图像直方图中的多个零点或者最小点,通过修改图像像素的灰度值来隐藏信息,并通过统计分析给出常用的信息隐藏的模型和算法。实验表明,该方法不仅可以进行大容量的信息隐藏,而且相对原始图像能够达到满意的峰值信噪比(PSNR),具有良好的性能。A new algorithm for reversible data hiding with high capacity is proposed in this paper,which can recover the original image without any distortion from the marked image after the hidden data have been extracted. This algorithm utilizes multi-zero or the minimum points in the historam of an image and hides data through modifying the pixel grayscale values. In the meantime,some modes and realizations based on this algorithm are also presented,which is mostly used by statistical analysis. Experimental results show that the algorithm can be used to hide high capacity data,and can achieve high peak-signal-to-noise ratio（PSNR）,and has better performance.

关 键 词：直方图修改 可逆隐藏 峰值点和零值点 

分 类 号：P309[天文地球—地球物理学]