摘要
介绍了数字图书馆和数字水印技术,就数字水印技术用于解决数字图书的图像版权保护问题进行了探讨,提出了一种用于图像认证的半易损数字水印算法。实验结果表明,该算法计算简单、有很好的抗JPEG压缩性能、对篡改的定位很精确。
The paper introduces d：~gital library and digital watermark technology, discusses digital watermark technology used to protect image copyright of digital books, and put forward a semi-fragile watermarking algorithm used in image authentication. The ex- perimental results show that the proposed algorithm has the advantages such as simple computation, good robustness to JPEG, and ex- act location for tamper.
出处
《情报探索》
2014年第5期112-115,共4页
Information Research
关键词
数字图书馆
离散小波变换
数字水印
半易损
图像认证
digital library
discrete wavelet transform
digital watermarking
semi-fragile
image authentication
