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A new framework is proposed to embed watermark through alternating frequency components of the black plane of a printed CMYK image according to the watermark message, and then decode the watermark with an infrared (IR) scanner. This framework leverages the facts that a given color can be produced by multiple combinations of CMYK quadruplets and the standard four-color printing materials have very...
Digital watermarks provide the capability to add extra information to various media, such as still images, movies and audio, by utilizing features of its content. Several methods for printed document have already been proposed using features of the text or images. In this paper we treat the paper media itself as content and propose a new information hiding methodology which utilizes the fiber pattern...
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