Improved LSB steganography method
一种改进的LSB数字图像隐藏算法*

As for the common LSB steganography,SPA(sample pair analysis) and(regularand singular groups method) could estimate the embedding rate in image with high precision.This paper presented a subset of affine transformation with integer coefficients and invariance of image area to realize the scrambling of digital image,a perfect steganographic encoding scheme based on linear block code theory LSB stegano-graphy,which made the embedded messages have more steganalysis counteraction ability.Experimental results show that the proposed approach is undetectable by RS(regular singular)steganalysis and SPA(sample pair analysis)steganalysis and the histogram's statistical property is preserved well.Otherwise,it is applicable for both gray images and color images and can be implemented conveniently.