| 数字图像版权的水印方案 |
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| 引用本文： | 杨世勇,葛建华,颜惠宇. 数字图像版权的水印方案[J]. 信号处理, 2004, 20(5): 465-469 |
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| 作者姓名： | 杨世勇 葛建华 颜惠宇 |
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| 作者单位： | 1. 西安电子科技大学ISN国家重点实验室,西安,710071
2. 西安电力专科学校 |
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| 摘 要： | 本文提出了一种新的用于图像数字版权的自适应水印方案,在该方案中,使用混沌映射将商标图像的像素在空间区域中进行随机置乱,然后将置乱的信息埋入在图像的DCT变换域中。为了使水印的分布集中在图像显著的边缘特征中,提出了基于图像像素的模糊熵测度算法,对图像特征系数的修改则是局部自适应的,使得水印埋入的强度随着图像局部变化而变化。嵌入的商标能够在随后的相关检测以及重构中得到很好的恢复以表明数字产品的版权。
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| 关 键 词： | 图像水印 版权保护 模糊熵 混沌映射 |
| 修稿时间： | 2003-06-27 |
A new adaptive watermarking for digital image copyright |
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| Yang Shiyong Ge Jianhua Yan Huiyu. A new adaptive watermarking for digital image copyright[J]. Signal Processing(China), 2004, 20(5): 465-469 |
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| Authors: | Yang Shiyong Ge Jianhua Yan Huiyu |
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| Affiliation: | Xi'dian university. ISN national key lab. Xi'an 710071; Xi'an electric power professional university |
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| Abstract: | A novel scheme of digital watermarking for image copyright is proposed. By the method, the logo pixels are mixed by the chaotic map in a specified spatial domain, and embedded in the DCT coefficients, to lay the watermarking information in the notable areas of the features of the image, an algorithm of fuzzy entropy estimation is proposed, the embedding watermark strength is characteristic with the statistic of the local feature coefficients of the original image. The logo can be reconstructed as well as statistical detected certainty from the watermarked image, and will provide indicating the copyright existence. |
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| Keywords: | image watermarking copyright protection fuzzy entropy chaotic map |
| 本文献已被 CNKI 万方数据 等数据库收录！ |
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