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dc.contributor.authorLerch Hostalot, Daniel-
dc.contributor.otherUniversitat Oberta de Catalunya-
dc.date.accessioned2011-07-01T11:45:49Z-
dc.date.available2011-07-01T11:45:49Z-
dc.date.issued2011-06-18-
dc.identifier.urihttp://hdl.handle.net/10609/8159-
dc.description.abstractIn 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.en
dc.language.isoeng-
dc.publisherUniversitat Oberta de Catalunya-
dc.rights.urihttp://creativecommons.org/licenses/by-nc-nd/3.0/es/-
dc.subjectsteganalysis, data hiding, histogram shifting, steganographyen
dc.titleSteganalytic methods for the detection of histogram shifting data-hiding schemes-
dc.typeinfo:eu-repo/semantics/masterThesis-
dc.audience.mediatorTheme areas::Computer Science, Technology and Multimedia::Free Softwareen
dc.audience.educationlevelPostgraduate degrees (official masters and doctoral degree)en
dc.contributor.directorMegías Jiménez, David-
Appears in Collections:Bachelor thesis, research projects, etc.

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