| 基于小波包分解的数字图像水印算法研究 |
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| 引用本文： | 韩忠.基于小波包分解的数字图像水印算法研究[J].科技通报,2012,28(4):136-137. |
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| 作者姓名： | 韩忠 |
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| 作者单位： | 河南省开封人民警察学校,河南开封,475003 |
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| 摘 要： | 通过Shannon熵算法采用自下向上的搜索方法选取最优小波包基,分别对原始图像和水印图像进行小波包分解,把水印数据嵌入选定的原始图像小波包基中。经攻击实验表明,应用本算法所实现的水印不可见,较好地保持了图像的质量,同时显示了较强的鲁棒性。
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| 关 键 词： | 数字水印 小波包分解 鲁棒性 算法 |
Wavelet Packet Decomposition of Digital Image Watermarking Algorithm |
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| HAN Zhong.Wavelet Packet Decomposition of Digital Image Watermarking Algorithm[J].Bulletin of Science and Technology,2012,28(4):136-137. |
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| Authors: | HAN Zhong |
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| Institution: | HAN Zhong(Henan People’s Police School,Kaifeng 475003,China) |
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| Abstract: | By Shannon entropy algorithm a search method using bottom-up selects the best wavelet packet basis.It adopts respectively original image and watermark image to decompose by the wavelet packets and then watermark data is inserted in the wavelet packet basis of the selected original images.The attack experiments show that the method of application achieves the goal that watermark is not visible,the quality of the image is preferably maintained and is qualified with excellent robustness. |
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| Keywords: | digital watermarking wavelet packets decomposition robustness algorithms |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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