A new repeating color watermarking scheme based on human visual model

Authors:
Chwei-Shyong Tsai;Chin-Chen Chang
Affiliations:
Department of Management Information System, National Chung Hsing University, Taichung, Taiwan;Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, Taiwan
Venue:
EURASIP Journal on Applied Signal Processing
Year:
2004

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Abstract

This paper proposes a human-visual-model-based scheme that effectively protects the intellectual copyright of digital images. In the proposed method, the theory of the visual secret sharing scheme is used to create a master watermark share and a secret watermark share. The watermark share is kept secret by the owner. The master watermark share is embedded into the host image to generate a watermarked image based on the human visual model. The proposed method conforms to all necessary conditions of an image watermarking technique. After the watermarked image is put under various attacks such as lossy compression, rotating, sharpening, blurring, and cropping, the experimental results show that the extracted digital watermark from the attacked watermarked images can still be robustly detected using the proposed method.