According to the distribution characteristics of short and repeated sequence （SRS）, a steganaiytic method based on the correlation of image bit planes is proposed. Firstly, we provide the conception of SRS distance ...According to the distribution characteristics of short and repeated sequence （SRS）, a steganaiytic method based on the correlation of image bit planes is proposed. Firstly, we provide the conception of SRS distance statistics and deduce its statistical distribution. Because the SRS distance statistics can effectively reflect the correlation of the sequence, SRS has statistical features when the image bit plane sequence equals the image width. Using this characteristic, the steganalytic method is fulfilled by the distinct test of Poisson distribution. Experimental results show a good performance for detecting LSB matching steganographic method in still images. By the way, the proposed method is not designed for specific steganographic algorithms and has good generality.展开更多
基金the National Natural Science Foundation of China (Grant No.60473022)
文摘According to the distribution characteristics of short and repeated sequence （SRS）, a steganaiytic method based on the correlation of image bit planes is proposed. Firstly, we provide the conception of SRS distance statistics and deduce its statistical distribution. Because the SRS distance statistics can effectively reflect the correlation of the sequence, SRS has statistical features when the image bit plane sequence equals the image width. Using this characteristic, the steganalytic method is fulfilled by the distinct test of Poisson distribution. Experimental results show a good performance for detecting LSB matching steganographic method in still images. By the way, the proposed method is not designed for specific steganographic algorithms and has good generality.
