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[2, 2017] 

Journal of Electrical Engineering, Vol 68, 2 (2017) 117-124 DOI: 10.1515/jee-2017-0016

Universal statistical steganalytic method

Martin Broda – Vladimír Hajduk – Dušan Levický

   Novel image steganalytic method used to detection of secret message in static images is introduced in this paper. This method is based on statistical steganalysis (SS), where statistical vector is composed by 285 statistical features (parameters) extracted from DCT (Discrete Cosine Transformation) domain and 46 features extracted mainly from DWT (Discrete Wavelet Transformation) domain. Classification process was realized by Ensemble classifier that was helpful in reduction of computational and time complexity. Proposed steganalytic method was verified by detection of popular image steganographic methods. Novel method was also compared with existing steganalytic methods by overall detection accuracy of a secret message.

Keywords: steganalysis, ensemble classifier, detection, DWT, DCT, statistical features


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