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| 基于图像变换域的双重数字水印方法 | |
| 引用本文： | 汪和生. 基于图像变换域的双重数字水印方法[J]. 广西大学学报(自然科学版), 2006, 31(3): 228-232 |
| 作者姓名： | 汪和生 |
| 作者单位： | 广东教育学院,计算机科学系,广东,广州,510303 |
| 摘 要： | 基于变换域的双重数字水印方法,通过嵌入鲁棒水印和脆弱水印实现了图像内容版权保护和完整性认证的双重目的.其优点是利用小波变换,分块、适应性嵌入鲁棒水印,在图像的高频和低频中分别嵌入鲁棒水印,使鲁棒水印更加强壮;同时它利用离散余弦变换,在图像的高频部分嵌入脆弱水印,使脆弱水印在遭受攻击或篡改时更易被损坏. |
| 关 键 词： | 变换域 双重数字水印 离散余弦域(DCT) 离散小波域(DWT) |
| 文章编号： | 1001-7445(2006)03-0228-05 |
| 收稿时间： | 2006-06-21 |
| 修稿时间： | 2006-08-17 |
Double digital watermarking method based on image transform domain |
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| WANG He-sheng. Double digital watermarking method based on image transform domain[J]. Journal of Guangxi University(Natural Science Edition), 2006, 31(3): 228-232 | |
| Authors: | WANG He-sheng |
| Affiliation: | Guangdong Institute of Education Department of Computer Science,Guangdong 510303,China |
| Abstract: | Double Digital Watermarking Method based on Transform Domain has realized the double aims of the copyright protection and the integrity authentication of image content.Its advantage is making Robust Watermark stronger by embedding Robust Watermark adaptively through decomposing big image into small blocks,which is based on DWT;and,in image's high frequency together with low frequency.At the same time it embed Fragile Watermark in image's high frequency part with the use of DCT so that Fragile Watermark can be shattered more easily when attacked or amended. |
| Keywords: | transform domain double digital watermark discrete cosine transform discrete wavelet transform |
| 本文献已被 CNKI 维普 万方数据 等数据库收录！ | |