| 基于计算机生成全息图及SVD—DWT的数字水印算法 |
| |
| 引用本文： | 方娜.基于计算机生成全息图及SVD—DWT的数字水印算法[J].渭南师范学院学报,2014(11):43-47. |
| |
| 作者姓名： | 方娜 |
| |
| 作者单位： | 集美大学诚毅学院,福建厦门361021 |
| |
| 摘 要： | 提出一种基于奇异值分解和离散小波变换并应用计算机生成全息图作为水印图像的新算法．该算法结合了奇异值分解抗几何攻击能力强以及离散小波变换抗噪声、压缩等能力强的特点．实验表明，该算法能有效地抵抗旋转、平移、翻转和缩放等几何攻击，同时对滤波、加噪声、JPEG压缩、图像模糊、裁剪、锐化和对比度增强等常规攻击也有很强的鲁棒性．
|
| 关 键 词： | 计算机生成全息图 离散小波变换 奇异值分解 数字水印 |
Digital Watermark Algorithm Based on Computer Generated Hologram and SVD-DWT |
| |
| FANG Na.Digital Watermark Algorithm Based on Computer Generated Hologram and SVD-DWT[J].Journal of Weinan Teachers College,2014(11):43-47. |
| |
| Authors: | FANG Na |
| |
| Institution: | FANG Na ( Chenyi College, Jimei University, Xiamen 361021, China) |
| |
| Abstract: | A new digital watermark algorithm based on SVD （Singular Value Decomposition） and DWT （Discrete Wavelet Transform） is presented. In this paper, the computer generated holograms are used as the watermarks. The algorithm combines the characteristics of strong resistance to geometric attacks by SVD transform and the characteristics of strong resistance noise, compression by DWT transform. The experimental results demonstrate that the proposed watermarking algorithm is robust against geometric attack such as rotation, translation, flipping and scaling, as well as a variety of common manipulations such as filtering, additive noise. JPEG comoression, blurring, croooing, sharoening and contrast enhancement. |
| |
| Keywords: | computer generated holograms DWT SVD digital watermark |
| 本文献已被 维普 等数据库收录！ |
