@InProceedings{BorgesMaye:2004:InPoBa,
               author = "Borges, Paulo Vinicius Koerich and Mayer, Joceli",
          affiliation = "{Universidade Federal de Santa Catarina}",
                title = "Informed Position Based Watermarking",
            booktitle = "Proceedings...",
                 year = "2004",
               editor = "Ara{\'u}jo, Arnaldo de Albuquerque and Comba, Jo{\~a}o Luiz Dihl 
                         and Navazo, Isabel and Sousa, Ant{\^o}nio Augusto de",
         organization = "Brazilian Symposium on Computer Graphics and Image Processing, 17. 
                         (SIBGRAPI) - Ibero-American Symposium on Computer Graphics, 2 
                         (SIACG)",
            publisher = "IEEE Computer Society",
              address = "Los Alamitos",
             keywords = "image processing, watermarking.",
             abstract = "In this work we propose improvements to the preliminary 
                         investigation on position based watermarking [7] by proposing an 
                         informed insertion approach. In addition, we see how these 
                         modifications bring even higher fidelity in comparison to the 
                         original work, and how the system may become reasonably robust to 
                         some common image processing operations. Regarding robustness, we 
                         also show how the proposed system may have an unique approach when 
                         dealing with collusion attacks. Usually in watermarking systems, 
                         the information to be transmitted is related to the watermark 
                         sequence itself. In contrast, in position based watermarking, the 
                         information is given by the watermark position in the image. In 
                         the informed embedding method for position based watermarking 
                         introduced here, an optimization criteria to choose the best among 
                         the available positions is suggested, improving considerably the 
                         system’s performance. Moreover, we compare the improved system 
                         with the traditional spread spectrum method and obtain 
                         satisfactory results regarding both fidelity and robustness to 
                         different attacks.",
  conference-location = "Curitiba, PR, Brazil",
      conference-year = "17-20 Oct. 2004",
                  doi = "10.1109/SIBGRA.2004.1352941",
                  url = "http://dx.doi.org/10.1109/SIBGRA.2004.1352941",
             language = "en",
                  ibi = "6qtX3pFwXQZeBBx/CS7uD",
                  url = "http://urlib.net/ibi/6qtX3pFwXQZeBBx/CS7uD",
           targetfile = "4378_borges_mayer.pdf",
        urlaccessdate = "2024, May 03"
}