| 基于DCT和DWT域的数字水印算法 |
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| 引用本文： | 李海燕.基于DCT和DWT域的数字水印算法[J].合肥学院学报(自然科学版),2009,19(3):37-39. |
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| 作者姓名： | 李海燕 |
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| 作者单位： | 安徽广播影视职业技术学院,信息工程系,合肥,230022 |
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| 摘 要： | 数字水印技术近年来得到了广泛的研究．新的水印算法不断提出，根据DCT域和DWT域图像水印技术原理，提出一种利用DCT域和DWT域相结合的图像水印技术算法，在嵌入强度的选取上做了新的测试．实验证明，用该算法嵌入水印的图像质量没有明显下降，并且嵌入的水印信息具有良好的鲁棒性．
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| 关 键 词： | 数字水印 离散余弦变换 离散小波变换 水印检测 |
Digital Watermarking Algorithms Based on DCT and DWT |
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| LI Hai-yan.Digital Watermarking Algorithms Based on DCT and DWT[J].Journal of Hefei University :Natural Sciences,2009,19(3):37-39. |
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| Authors: | LI Hai-yan |
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| Institution: | Information Engineering Department;Anhui Broadcasting Movie and Television Vocational College;Hefei 230022;China |
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| Abstract: | Digital watermarking systems have gained a large interest in recent years.Many new watermarking algorithms have been presented based on the technical principles of embedding watermarks which are based on DCT and DWT.A watermark algorithm is proposed and the selection of embedding intensity is tested.The experiment shows that this new algorithm can keep the image quality well as before and even has better robusticity. |
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| Keywords: | digital watermarking DCT DWT watermarking detection |
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