A New DCT Based Watermarking Method Using Luminance Component

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dc.authoridOzcerit, Ahmet Turan/0000-0002-5639-2424
dc.contributor.authorYesilyurt, M.
dc.contributor.authorYalman, Y.
dc.contributor.authorOzcerit, A. T.
dc.date.accessioned2025-10-24T18:10:12Z
dc.date.available2025-10-24T18:10:12Z
dc.date.issued2013
dc.departmentMalatya Turgut Özal Üniversitesi
dc.description.abstractThe main purpose of the digital watermarking is to provide information security and copyright protection. From this point of view, a robust blind watermarking method based on Discrete Cosine Transform for colour images is proposed in this paper. The proposed method provides hiding a binary watermark in a compressed Digital Colour Image. First, the Digital Color Image is transformed into YCbCr from RGB color space and then the Discrete Cosine Transform middle band of the luminance (Y) component is used for watermarking processes. Each bit of the binary watermark is embedded in a different Discrete Cosine Transform block. Thus, deterioration on the image is minimized achieving high invisibility. The situation is checked whether the watermark is lost after the image saved. If the watermark is lost in any block, the average of some neighbouring Discrete Cosine Transform coefficients is used for embedding the watermark bit. The experimental results show that the proposed method can be safely used when point of interest is binary watermarks. Moreover, extraction processes do not need the cover image and the watermark is recovered completely. Statistical and perceptual quality evaluations show that the proposed method is better than its counterparts.
dc.identifier.doi10.5755/j01.eee.19.4.2015
dc.identifier.endpage52
dc.identifier.issn1392-1215
dc.identifier.issue4
dc.identifier.scopus2-s2.0-84876389018
dc.identifier.scopusqualityQ3
dc.identifier.startpage47
dc.identifier.urihttps://doi.org/10.5755/j01.eee.19.4.2015
dc.identifier.urihttps://hdl.handle.net/20.500.12899/4038
dc.identifier.volume19
dc.identifier.wosWOS:000320496600010
dc.identifier.wosqualityQ4
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoen
dc.publisherKaunas Univ Technology
dc.relation.ispartofElektronika Ir Elektrotechnika
dc.relation.publicationcategoryMakale - Uluslararası Hakemli Dergi - Kurum Öğretim Elemanı
dc.rightsinfo:eu-repo/semantics/openAccess
dc.snmzKA_20251023
dc.subjectInvisible watermarking; discrete cosine transform; YCbCr transform; digital image
dc.titleA New DCT Based Watermarking Method Using Luminance Component
dc.typeArticle

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