| 一种基于小波变换的鲁棒数字图像水印 |
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| 引用本文： | 唐宁,赵景秀.一种基于小波变换的鲁棒数字图像水印[J].计算机安全,2009(11):44-46. |
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| 作者姓名： | 唐宁 赵景秀 |
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| 作者单位： | 曲阜师范人学,计算机科学学院,山东,日照,276826 |
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| 摘 要： | 提出了一种基于小波变换的鲁棒数字图像水印算法。该算法首先对水印信息进行置乱以降低空间相关性,然后把原始图像进行三级小波变换。并将水印信息嵌入到原始图像的低频子带中,最后经三级小波反变换得到嵌入水印后的图像。实验结果表明,该算法具有较强的鲁棒性。
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| 关 键 词： | 数字图像水印 小波变换 Arnold变换 鲁棒性 |
A Way of Robust Digital Watermark Based on Wavelet Transformation |
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| TANG Ning,ZHAO Jing-xiu.A Way of Robust Digital Watermark Based on Wavelet Transformation[J].Network & Computer Security,2009(11):44-46. |
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| Authors: | TANG Ning ZHAO Jing-xiu |
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| Affiliation: | (Qufu Normal University, School of Computer Science, Rizhao, Shandong 276826, China) |
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| Abstract: | A robust digital image watermarking algorithm based on DWT is proposed in this paper. At first ,the watermark is scrambled to decrease the spatial correlation, then the original image is three-level wavelet transformed and embed the watermark into the low frequency sub- band of the original image. Finally, the watermarked image is achieved through reverse wavelet transform. Experiment results show that the proposed algorithm is robust against common image processing. |
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| Keywords: | Digital Image Watermarking DWT Arnold Transform Robustness |
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