| 基于DWT-SVD分解的数字水印方案 |
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| 引用本文： | 张割,左运兴. 基于DWT-SVD分解的数字水印方案[J]. 军民两用技术与产品, 2008, 0(8) |
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| 作者姓名： | 张割 左运兴 |
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| 作者单位： | 北京航空工程技术研究中心,北京,100076 |
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| 摘 要： | 数字水印技术为版权保护提供了一个有效途径,已成为研究的热点。结合DWT多分辨率特性和矩阵SVD分解后奇异值抗扰动的特点,将水印图像的奇异值按对应图像的概貌和细节分成两部分,分别嵌入原始图像一级DWT后LL子带和HH子带。该方案抗JPEG压缩,对通常的图像处理具有较强的稳健性,具有一定的实用价值。
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| 关 键 词： | 水印 DWT SVD |
A Digital Watermarking Scheme Based on DWT-SVD Decomposition |
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| Zhang Ge,Zuo Yunxing. A Digital Watermarking Scheme Based on DWT-SVD Decomposition[J]. Universal Technologies & Products, 2008, 0(8) |
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| Authors: | Zhang Ge Zuo Yunxing |
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| Abstract: | Watermarking provides an efficient method for copyright protection. Considering the multi-solution property of DWT and anti-disturbance property of singular value after SVD decomposition, we divide singular values of watermark image into two parts, which correspond to approximation and details respectively, then embed them into the LL and HH sub-band of DWT domain of the original image. Experiments show that this method is robust for common image processing and JPEG compression. |
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| Keywords: | Watermarking DWT SVD |
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