抗差分检测的高位空域隐藏方法

Method of high-bit hiding in spatial domain resisted difference detection

针对HSBH的特点对其进行分析,提出一种区间差分检测的方法(DMID),可以准确检测其隐藏量,进而提出了改进的HSBH算法,使其可以抗击DMID的检测。实验结果表明,DMID方法可以测量出HSBH算法隐藏量,检测准确率达到95%以上,改进的HSBH算法使DMID分析得出的估计值低于判决门限2%,从而做出错误判决,可以很好地抗击区间差分检测。

Based on analyzing feature of HSBB, the detected method of interval difference（DMID） is presented.The embedding rate in image is estimated, and the improved HSBH is proposed which can defeat the estimation of DMID.Experimental results show that DMID algorithm estimate the embedding rate of HSBH algorithm with high precision above 95%.Using the improved algorithm, DMID steganalysis can get a very small estimate value, which is lower than the threshold value 2% and can cause an incorrect judgment.This approach resist the DMID steganalysis.