Volume 8 Number 10 (Oct. 2013)
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JCP 2013 Vol.8(10): 2507-2511 ISSN: 1796-203X
doi: 10.4304/jcp.8.10.2507-2511

A Novel Robust Color Image Digital Watermarking Algorithm Based on Discrete Cosine Transform

Tai-yue Wang1, 2 and Hong-wei Li1
1 School of Mathematics and Physics, China University of Geosciences, Wuhan 430074, P. R China
2 School of Mathematics and Statistics, South Central University for Nationalities, Wuhan 435003, P. R China


Abstract—Digital watermarking technology is a very good method for protecting copyright. In this paper, in terms of requisition of imperceptibility and robustness of watermarking, the coefficient features of Discrete Cosine Transform (DCT) are introduced and a new image watermarking scheme based on Discrete Cosine Transform is proposed. Digital watermark is embedded in original image by subtle perturbations of Discrete Cosine Transform corresponding coefficients. Experimental results show that the proposed watermarking scheme is feasible and simple, the embedded watermarking images have little difference with the original images and the extracted watermark is accurate. Moreover, it is imperceptible and robust against various signals processing such as noise adding, cropping, rotating and sharp, etc.

Index Terms—digital watermarking, Discrete Cosine Transform, watermarking algorithm, robustness, evaluation index

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Cite: Tai-yue Wang and Hong-wei Li, " A Novel Robust Color Image Digital Watermarking Algorithm Based on Discrete Cosine Transform," Journal of Computers vol. 8, no. 10, pp. 2507-2511, 2013.

General Information

ISSN: 1796-203X
Abbreviated Title: J.Comput.
Frequency: Bimonthly
Editor-in-Chief: Prof. Liansheng Tan
Executive Editor: Ms. Nina Lee
Abstracting/ Indexing: DBLP, EBSCO,  ProQuest, INSPEC, ULRICH's Periodicals Directory, WorldCat,etc
E-mail: jcp@iap.org
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