Comparison of Two Kinds of Image Scrambling Methods Based on LSB Steganalysis
نویسندگان
چکیده
According to the research of LSB steganalysis, LSB steganography could destroy the distribution of 0 and 1 in the lowest bit planes, and this situation will cause the abnormality of histogram and asymmetry statistical, thereby left an opportunity that could be exploited to the steganalysis. From the view of steganalysis, this paper compared the two typical kinds of image scrambling methods which are the Arnold transform from the position-based scrambling and the Logistic chaotic sequence from the gray values of pixels based scrambling, studied the performance of the two typical methods which are used in LSB steganography. The theoretic and experimental results show that the Gray values of pixels based scrambling could effectively improve the histogram abnormality and statistical asymmetry, which is better than the Position-based scrambling.
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