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自动化与信息科学期刊

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ISSN 打印: 1064-2315

ISSN 在线: 2163-9337

SJR: 0.173 SNIP: 0.588 CiteScore™:: 2

Indexed in

The Inverse Steganalysis Methods Based on χ2-Criterion

卷 47, 册 5, 2015, pp. 60-68
DOI: 10.1615/JAutomatInfScien.v47.i5.50
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摘要

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.

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