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2003
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LLRT based detection of LSB hiding

13 years 3 months ago
LLRT based detection of LSB hiding
In this paper we consider a hypothesis testing approach for detection of hiding in the least significant bit (LSB). This steganalysis problem is a composite hypothesis testing problem. We state a regularity condition on the image histogram, which reduces this problem to a simple hypothesis testing problem. We then develop a number of simple practical tests based on the estimation of the optimal log likelihood ratio statistic. We show that our tests significantly outperform Stegdetect, a popular hypothesis test available in the literature. Our approach also leads to good estimates of the hiding rate.
Kenneth Sullivan, Onkar Dabeer, Upamanyu Madhow, B
Added 24 Oct 2009
Updated 24 Oct 2009
Type Conference
Year 2003
Where ICIP
Authors Kenneth Sullivan, Onkar Dabeer, Upamanyu Madhow, B. S. Manjunath, Shivkumar Chandrasekaran
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