Fusion of color edge detection and color quantization for color image watermarking using principal axes analysis

Authors:
Chen-Tsung Kuo;Shyi-Chyi Cheng
Affiliations:
Institute of Engineering Science and Technology, National Kaohsiung First University of Science and Technology, 1 University Road, Yenchao, Kaohsiung 824, Taiwan and Department of Information Mana ...;Department of Computer Science and Engineering, National Taiwan Ocean University, 2 Pei-Ning Road, Keelung 202, Taiwan
Venue:
Pattern Recognition
Year:
2007

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Abstract

In the past few years, many gray-level image watermarking schemes have been proposed, although the extension to the color case is rare and regularly accomplished by marking the image luminance, or by processing each color channel separately. This paper presents a new color image watermarking scheme that combines color edge detection and color quantization using principal axes analysis in three-dimensional color space. The watermark is hidden within the data by modifying a subset of carefully selected edge points to resist both geometric distortion and signal processing attacks. Experimental results show the robustness of the proposed scheme to resist common attacks.