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| 一种基于DWT的数字隐形水印算法 | |
| 引用本文： | 黄初霜. 一种基于DWT的数字隐形水印算法[J]. 科学技术与工程, 2007, 7(16): 4199-42034208 |
| 作者姓名： | 黄初霜 |
| 作者单位： | 中国科学院上海技术物理研究所,上海,200083 |
| 摘 要： | 提出了一种基于小波变换(DWT)的盲检测加密水印算法。利用离散小波多分辨率分解技术,在中层小波系数域嵌入图像水印信息。在提取水印时利用了水印图像本身的相关性来提高水印的提取效果。实验结果表明提出的数字水印算法,经某些图像处理操作和JPEG有损压缩后仍是有效的。 |
| 关 键 词： | 数字水印 离散小波变换 多分辨 |
| 文章编号： | 1671-1819(2007)16-4199-06 |
| 修稿时间： | 2007-04-24 |
Robust Digital Watermark Based on DWT |
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| HUANG Chu-shuang. Robust Digital Watermark Based on DWT[J]. Science Technology and Engineering, 2007, 7(16): 4199-42034208 | |
| Authors: | HUANG Chu-shuang |
| Affiliation: | Shanghai Institute of Technical Physics ,Chinese Academy of Sciences Shanghai 200083 ,P. R. China |
| Abstract: | A digital watermarking arithmetic based on multiresolution decomposition is proposed. By multiresolution decomposition technique, the watermark image is embedded into the proper coefficient of the decomposed original image. The correlation of the watermark image is contributing in extraction without the original image. Experimental results show that the proposed arithmetic can survive certain general image processing. |
| Keywords: | digital watermark discrete wavelet transform multiresolution |
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