High Capacity and Secure Watermarking for Medical Images Using Tchebichef Moments

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dc.contributor.authorBastani, Azadeh
dc.contributor.authorAhouz, Fatemeh
dc.coverage.issue4cs
dc.coverage.volume29cs
dc.date.accessioned2021-04-30T12:26:28Z
dc.date.available2021-04-30T12:26:28Z
dc.date.issued2020-12cs
dc.description.abstractUsing Tchebichef Moments, this study has introduced a new method for imperceptible watermarking of the medical images with a high embedding capacity and robustness against the various attacks. The suggested method applies conditional quantization based on dither modulation to minimize the number of the moment orders that need to be changed. Reduction of modified moments increases the watermark imperceptibility and hence decreases the attacks probability. The proposed method has been examined in the presence of such factors as quantization step and watermark size. Experimental results show that average PSNR is 53.91 dB for 16384 embedding watermark bits. Moreover, the introduced algorithm has been tested for known attacks like scaling, cropping, noise, etc. It has been shown that our proposed method has proper security and robustness against various attacks. In addition, zero false positive rate on non-watermarked images has been obtained.en
dc.formattextcs
dc.format.extent636-643cs
dc.format.mimetypeapplication/pdfen
dc.identifier.citationRadioengineering. 2020 vol. 29, č. 4, s. 636-643. ISSN 1210-2512cs
dc.identifier.doi10.13164/re.2020.0636en
dc.identifier.issn1210-2512
dc.identifier.urihttp://hdl.handle.net/11012/196618
dc.language.isoencs
dc.publisherSpolečnost pro radioelektronické inženýrstvícs
dc.relation.ispartofRadioengineeringcs
dc.relation.urihttps://www.radioeng.cz/fulltexts/2020/20_04_0636_0643.pdfcs
dc.rightsCreative Commons Attribution 4.0 International licenseen
dc.rights.accessopenAccessen
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/en
dc.subjectMedical imageen
dc.subjectdigital watermarkingen
dc.subjectTchebichef momentsen
dc.subjectdither modulationen
dc.titleHigh Capacity and Secure Watermarking for Medical Images Using Tchebichef Momentsen
dc.type.driverarticleen
dc.type.statusPeer-revieweden
dc.type.versionpublishedVersionen
eprints.affiliatedInstitution.facultyFakulta eletrotechniky a komunikačních technologiícs
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