| 一种脊波域数字水印算法 |
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| 引用本文： | 黄建平,宋国乡.一种脊波域数字水印算法[J].台州学院学报,2006,28(6):24-28. |
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| 作者姓名： | 黄建平 宋国乡 |
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| 作者单位： | 1. 台州学院,数学与信息工程学院,浙江,临海,317000
2. 西安电子科技大学,理学院,陕西,西安,710071 |
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| 摘 要： | 针对静止的自然图像,提出了一种基于有限脊波变换-Finite Ridgelet Transform(FRIT)域的水印算法．该算法利用二进小波提取原图像的模值图像之后,再对它进行分块,并分别对各个子块进行FRIT,最后把经过扩展谱技术处理得到的水印嵌入到每个子块能量最高的脊波系数中。水印的检测利用了相关函数法,且实现了水印的盲检测。实验证明该算法具有较强的鲁棒性。
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| 关 键 词： | 有限脊波变换 Radon变换 二进小波 扩展谱技术 |
| 文章编号： | 1672-3708（2006）06-0024-05 |
| 收稿时间： | 2006-06-05 |
| 修稿时间： | 2006年6月5日 |
A Digital Watermarking Algorithms Based on Ridgelet Transformation |
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| HUANG Jian-ping,SONG Guo-xiang.A Digital Watermarking Algorithms Based on Ridgelet Transformation[J].Journal of Taizhou University,2006,28(6):24-28. |
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| Authors: | HUANG Jian-ping SONG Guo-xiang |
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| Abstract: | Aiming at a static images, a new watermark algorithm on finite ridgelet transformation is put forward. After the image is done by dyadic wavelet and a modular image is got, it is partitioned. And then every partition is done by FRIT. Finally the watermark that is got with the spread spectrum technique is embedded into the most energetic coefficients of ridgelet. A correlation function is used in the watermark detection process and the original image is not required. Furthermore experimental results show such kind of algorithm is robust . |
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| Keywords: | Finite Ridgelet Transform Radon Transfonnation Dyadic Wavelet the Spread Spectrum Technique |
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