Information Hiding Method Utilizing Low Visible Natural Fiber Pattern for Printed Documents

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 of paper. The proposed method is expected to improve the quality of watermarked documents and the geometric sensitivity in the watermarked documents. In this paper we show the principle of the paper-like pattern as a watermark, its possibility, advantages in terms of visual quality and geometric sensitivity.