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Block Size Analysis for Discrete Wavelet Watermarking and Embedding a Vector Image as a Watermark

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dc.contributor.author Sever, Hayri
dc.contributor.author Şenol, Ahmet
dc.contributor.author Elbaşı, Ersin
dc.date.accessioned 2020-01-30T13:02:36Z
dc.date.available 2020-01-30T13:02:36Z
dc.date.issued 2019-11
dc.identifier.citation Sever, Hayri; Senol, Ahmet; Elbasi, Ersin, "Block Size Analysis for Discrete Wavelet Watermarking and Embedding a Vector Image as a Watermark", International Arab Journal of Information Technology, Vol. 16, No. 6, pp. 1036-1043, (2019). tr_TR
dc.identifier.issn 1683-3198
dc.identifier.uri http://hdl.handle.net/20.500.12416/2390
dc.description.abstract As telecommunication and computer technologies proliferate, most data are stored and transferred in digital format. Content owners, therefore, are searching for new technologies to protect copyrighted products in digital form. Image watermarking emerged as a technique for protecting image copyrights. Early studies on image watermarking used the pixel domain whereas modern watermarking methods convert a pixel based image to another domain and embed a watermark in the transform domain. This study aims to use, Block Discrete Wavelet Transform (BDWT) as the transform domain for embedding and extracting watermarks. This study consists of 2 parts. The first part investigates the effect of dividing an image into non overlapping blocks and transforming each image block to a DWT domain, independently. Then, effect of block size on watermark success and, how it is related to block size, are analyzed. The second part investigates embedding a vector image logo as a watermark. Vector images consist of geometric objects such as lines, circles and splines. Unlike pixel-based images, vector images do not lose quality due to scaling. Vector watermarks deteriorate very easily if the watermarked image is processed, such as compression or filtering. Special care must be taken when the embedded watermark is a vector image, such as adjusting the watermark strength or distributing the watermark data into the image. The relative importance of watermark data must be taken into account. To the best of our knowledge this study is the first to use a vector image as a watermark embedded in a host image. tr_TR
dc.language.iso eng tr_TR
dc.publisher Zarka Private Univ tr_TR
dc.rights info:eu-repo/semantics/closedAccess tr_TR
dc.subject Watermarking tr_TR
dc.subject DWT tr_TR
dc.subject Block tr_TR
dc.subject Vector tr_TR
dc.subject SVG tr_TR
dc.title Block Size Analysis for Discrete Wavelet Watermarking and Embedding a Vector Image as a Watermark tr_TR
dc.type article tr_TR
dc.relation.journal International Arab Journal of Information Technology tr_TR
dc.contributor.authorID 11916 tr_TR
dc.identifier.volume 16 tr_TR
dc.identifier.issue 6 tr_TR
dc.identifier.startpage 1036 tr_TR
dc.identifier.endpage 1043 tr_TR
dc.contributor.department Çankaya Üniversitesi, Mühendislik Fakültesi, Yazılım Mühendisliği Bölümü tr_TR


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