Publicou 12 edições por ano
ISSN Imprimir: 0040-2508
ISSN On-line: 1943-6009
Indexed in
Optimal Detection System of Digital Watermarks in Spatial Domain
RESUMO
Many watermarking algorithms in spatial domain lack of a mathematical derivation of the detector of digital watermarks. On this subject, this paper proposes a statistical model which allows both blind digital watermark detection and blind threshold computing. This model with the assistance of other pre-processing tools such as pre-detection filtering and geometrical distortions compensation offers reliable fast and accurate watermark detection when strong attacks such as high power noise corruption, geometrical attacks and so on.
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Kwon O-Hyung, Park Rae-Hong, Watermarking for Still Images Using a Computation of the Watermark Weighting Factor and the Human Visual System in the DCT Domain, in Multimedia Information Hiding Technologies and Methodologies for Controlling Data, 2013. Crossref