Abstract
We propose a simple, reliable method based on probability of transitions and distribution of adjacent pixel pairs for steganalysis on digital images in spatial domain subjected to Least Significant Bit replacement steganography. Our method is sensitive to the statistics of underlying cover image and is a variant of Sample Pair Method. We use the new method to estimate length of hidden message reliably. The novelty of our method is that it detects from the statistics of the underlying image, which is invariant with embedding, whether the results it calculate are reliable or not. To our knowledge, no steganalytic method so far predicts from the properties of the stego image, whether its results are accurate or not.
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Shreelekshmi, R., Wilscy, M. & Veni Madhavan, C.E. Improved LSB stegananalysis based on analysis of adjacent pixel pairs. SIViP 7, 811–816 (2013). https://doi.org/10.1007/s11760-011-0270-4
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DOI: https://doi.org/10.1007/s11760-011-0270-4