摘要
数字水印是对数字媒体产品进行产权保护的一种重要方法。该文提出一种抵抗联合图像专家小组压缩攻击的水印算法,对载体图像进行部分解码,将水印以奇偶原则嵌入到量化后的直流分量系数中,再编码成图像。算法简单易实现,对原图修改较少,有良好的透明性,并能抵抗常见图像处理软件的压缩攻击。
Digital watermarking is an important method to protect digital products.This paper proposes a digital watermarking scheme resistant to JPEG compression attacks.The watermark is embedded into the DC stream by odd-even law while decoding JPEG images.This method makes little modify,easy to reoccur,so that it is imperceptible and it has the ability to resist to jpeg compression attacks.
出处
《杭州电子科技大学学报（自然科学版）》
2012年第6期105-108,共4页
Journal of Hangzhou Dianzi University：Natural Sciences
关键词
数字水印
压缩
量化表
digital watermarking
compression
quantization table
