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Author(s): |
Heping Feng, Faculty of Information Engineering and Automation,Kunming University of Science and TechologyKunming, 650051, China
Yuhui Li, Faculty of Information Engineering and Automation,Kunming University of Science and TechologyKunming, 650051, China
Hua Lai, Faculty of Information Engineering and Automation,Kunming University of Science and TechologyKunming, 650051, China
Shengjun Ding, Faculty of Information Engineering and Automation,Kunming University of Science and TechologyKunming, 650051, China |
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Abstract: |
Digital watermarking is copyright protection of multimedia data to solve the problem of an effective means.Currently,most of the digital watermarking algorithms was that gray image was embedded in the host image,this paper proposes a DCT-based dual-color image watermarking algorithm,according to superposition and the characteristics of each color channel,selecting the appropriate watermarking strength embed into each color channel,generating a image which is synchronous with the host image in content.Then verify the correctness of the algorithm through Matlab.The results show that it was realized for the large amount of color watermark embedded into color image and reached the balance between invisibility and robustness.
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