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Steganalytic methods for the detection of histogram shifting data-hiding schemes
Lerch Hostalot, Daniel
Universitat Oberta de Catalunya
In this paper, some steganalytic techniques designed to detect the existence of hidden messages using histogram shifting methods are presented. Firstly, some techniques to identify specific methods of histogram shifting, based on visible marks on the histogram or abnormal statistical distributions are suggested. Then, we present a general technique capable of detecting all histogram shifting techniques analyzed. This technique is based on the effect of histogram shifting methods on the "volatility" of the histogram of differences and the study of its reduction whenever new data are hidden.
steganalysis, data hiding, histogram shifting, steganography
Master thesis
Universitat Oberta de Catalunya

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