摘要
针对数据隐藏算法在携带信息时容易被检测工具SPAM侦测出来这一现象,将随机嵌入和直方图修正技术应用到数据隐藏中,提出一种随机嵌入抗SPAM检测的可逆数据隐藏算法。该方法通过对采样子图与参照子图间的差值直方图进行平移空位来嵌入信息。在信息嵌入过程中,用随机函数产生的伪随机序列来标志待隐藏信息的位置,使嵌入的信息分布更不规律,从而更好地逃脱检测工具SPAM的侦测。实验结果表明,相比Kim算法,该算法抗SPAM检测的安全性更好,更适合进行信息传递。
To prevent data hiding algorithm from being detected by detection tool SPAM in the information transmission process,this paper proposed a reversible randomly embedded anti-SPAM detection data hiding algorithm using random embedding and histogram modification.The method embedded information by shifting and preparing empty bins in difference histograms between the reference sub-sampled image and other sub-sampled images.In the embedding process,this algorithm marked the position of randomly embedded information with pseudo-random sequence,thus it made the distribution of the embedded information more irregular and the escape from SPAM more successful.Experimental results show that the proposed algorithm is more secure under the detection of SPAM and more suitable for information transmission compared with Kim algorithm.
出处
《计算机应用研究》
CSCD
北大核心
2013年第7期2111-2114,共4页
Application Research of Computers
基金
台湾省国科会计划资助项目(100-2221-E-025-014-MY2)
福建省教育厅JK类科技项目(JK2012044)
厦门市科技计划资助项目(3502Z20103036)
关键词
随机嵌入
SPAM
可逆数据隐藏
直方图修正
子图采样
random embedding
SPAM（subtractive pixel adjacency matrix）
reversible data hiding
histogram modification
sub-sampling
