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自动化与信息科学期刊
SJR: 0.232 SNIP: 0.464 CiteScore™: 0.27

ISSN 打印: 1064-2315
ISSN 在线: 2163-9337

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自动化与信息科学期刊

DOI: 10.1615/JAutomatInfScien.v47.i5.50
pages 60-68

The Inverse Steganalysis Methods Based on χ2-Criterion

Lyubov L. Nikitenko
V.M. Glushkov Institute of Cybernetics of National Academy of Sciences of Ukraine, Kiev, Ukraine

ABSTRACT

Two steganalyses methods are offered to divide the accepted images into containers and stego. The methods are intended for detection of the information embedding in the least meaningful bits of the image. The division of the accepted images occurs by the rules of χ2-criterion. The hypothesis about the accepted empty container is considered as the basic one. The theorem on possibility of obtaining the consistent estimate of distribution of the empty container from the accepted image using the averaging filtration is proved. The theoretical basis for methods development is the mathematical model of stegosystem for which the validity of using χ2-criterion on satisfaction of the theorem conditions is proved.