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dc.contributor.authorRidzon, R.
dc.contributor.authorLevicky, D.
dc.date.accessioned2016-03-24T06:45:00Z
dc.date.available2016-03-24T06:45:00Z
dc.date.issued2007-12cs
dc.identifier.citationRadioengineering. 2007, vol. 16, č. 4, s. 76-81. ISSN 1210-2512cs
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/57328
dc.description.abstractThe geometrical attacks are still an open problem for many digital watermarking algorithms used in present time. Most of geometrical attacks can be described by using affine transforms. This article deals with digital watermarking in images robust against the affine transformations. The new approach to improve robustness against geometrical attacks is presented. The discrete Fourier transform and log-polar mapping is used for watermark embedding and for watermark detection. Some attacks against the embedded watermarks are performed and the results are given.en
dc.formattextcs
dc.format.extent76-81cs
dc.format.mimetypeapplication/pdfen
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttp://www.radioeng.cz/fulltexts/2007/07_04_076_081.pdfcs
dc.rightsCreative Commons Attribution 3.0 Unported Licenseen
dc.rights.urihttp://creativecommons.org/licenses/by/3.0/en
dc.subjectDigital watermarkingen
dc.subjectgeometrical attacksen
dc.subjectdiscrete Fourier transformen
dc.subjectlog-polar mappingen
dc.subjecthash functionen
dc.titleRobust Digital Watermarking Based on the Log-Polar Mappingen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
dc.coverage.issue4cs
dc.coverage.volume16cs
dc.rights.accessopenAccessen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen


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