基于直方图差分分离的LSB隐秘的可靠检测

A Reliable Detection of LSB Steganography Based on Histogram Difference Separation

基于对直方图差分统计量的观察,提出一种新的可靠的检测LSB嵌入的方法。该方法依靠直方图的差分统计量与嵌入比例存在的线性关系而实现隐秘分析,不仅可以可靠确定图像中通过空域LSB方法嵌入的秘密信息的存在性,还可以准确估计图像中嵌入的数据量的大小。

A new reliable detection method of LSB embedding is presented,which is based on the obeservation of the histogram difference seperation (HDS). The steganalytic method depends on the linearity relationship between HDS and the embedded message length which can not only determine the existence of the LSB embedding in a image but also estimate the embedded message length accurately.