| 基于DCT和SVD变换的多重数字水印算法 |
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| 引用本文： | 王磊. 基于DCT和SVD变换的多重数字水印算法[J]. 现代计算机, 2008, 0(10) |
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| 作者姓名： | 王磊 |
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| 作者单位： | [1]合肥工业大学计算机与信息学院,合肥230009 [2]蚌埠学院计算机系,蚌埠233000 |
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| 摘 要： | 提出一种新的基于DCT和SVD分解的水印算法,该算法首先进行分决DCT变换,直接用一参数时要嵌入的中频系数进行修改,再对嵌入水印后的图像进行SVD分解,将两个随机序列嵌入到各子块的奇异值中,达到重复嵌入水印.实验表明,此双水印系统能够迭到标识、认证图像所有权的目的.
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| 关 键 词： | 数字水印 DCT变换 SVD变换 鲁棒水印 |
Dual Watermarking Algorithm Based on DCT and SVD |
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| WANG Lei. Dual Watermarking Algorithm Based on DCT and SVD[J]. Modem Computer, 2008, 0(10) |
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| Authors: | WANG Lei |
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| Affiliation: | WANG Lei1,2(1.College of Computer , Information,Hefei University of Technology,Hefei 230009,2.Computer Science & Technology,Bengbu College,Bengbu 233000) |
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| Abstract: | Proposes a new watermarking algorithm for digital image based on DCT and SVD.After block DCT transformation,uses a parameter to quantize the middle-frequency coefficients.Based on block SVD,two random sequences is embeded into singular values of every block,realizes dual watermarking.The experiment shows that the dual watermarking system can indicate and verify the ownership. |
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| Keywords: | Digital Watermark DCT SVD Robust Watermarking |
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