A color image watermarking scheme based on color quantization

Authors:
Piyu Tsai;Yu-Chen Hu;Chin-Chen Chang
Affiliations:
Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, Taiwan 62107, ROC;Department of Computer Science and Information Management, Providence University, Taichung, Taiwan 433, ROC;Department of Computer Science and Information Engineering, National Chung Cheng University, Chiayi, Taiwan 62107, ROC
Venue:
Signal Processing
Year:
2004

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Abstract

Digital watermarking has been widely applied to solve copyright protection problems of digital media relating to illegal use or distribution. In the past few years, several gray-level image watermarking schemes have been proposed, but their application to color image watermarking schemes is scarce and usually works on the luminance or individual color channel. In this paper, a new color image watermarking scheme based on the color quantization technique is proposed. Experimental results are shown to demonstrate the validity of the proposed scheme. Furthermore, the proposed scheme can be applied to other multimedia applications that are based on the color quantization technique.