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Propose a New Steganalysis Method for BPCS which base on Markov model. According to BPCS steganography algorithm destroy the continuity of images, divide the least significant bit plane of images to sub-blocks. Then calculate the complexity of the various blocks to form Markov matrix, and scan the matrix to construct the Markov model, extracting features to classification test. In the experiment use...
In recent, a Markov Process based approach has been proposed to effective attacking JPEG Steganography, and the experimental works had demonstrated that scheme has outperformed the existing steganalyzers in attacking JPEG steganography. To improve that original Markov Process based approach, several variants based that scheme has been proposed and experimented including using JPEG 1D array, using...
Double JPEG compression detection is of significance in digital forensics. We propose an effective machine learning based scheme to distinguish between double and single JPEG compressed images. Firstly, difference JPEG 2D arrays, i.e., the difference between the magnitude of JPEG coefficient 2D array of a given JPEG image and its shifted versions along various directions, are used to enhance double...
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