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Journal of Automation and Information Sciences
SJR: 0.232 SNIP: 0.464 CiteScore™: 0.27

ISSN Imprimir: 1064-2315
ISSN On-line: 2163-9337

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Journal of Automation and Information Sciences

DOI: 10.1615/JAutomatInfScien.v47.i4.40
pages 36-42

Application of the Extended χ2-Criterion for Embedded Information Detecting

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

RESUMO

One of the steganoanalysis methods − the extended χ2-criterion, applied for detection of the information, embedded into the least significant bits of the JPEG images, is considered. The method is based on the comparison with a user-defined threshold of the averaged value of the χ2-function. As a result of calculation, the estimates of the stego histogram and value of the χ2-function as functions of the embedding rate and empty container histogram are obtained.


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