【摘要】 介绍了数字水印技术的基本概念、应用背景,数字水印技术的基本要求、发展现况与发展方向。并提出一种基于图像特征树量化的数字水印算法,水印信息嵌入在图像的重要特征之中,故对JPEG、JPEG2000压缩以及高斯噪音等多种处理具有较强的鲁棒性。更多还原

【Abstract】 Digital watermarking is a new technology for multimedia security in the net environment.The basic concept and applications background,requirement and current state and development direction in the future of the new technology are dis-cussed in detail in this paper.And a new feature tree quantization based watermarking algorithm is proposed in this paper.The watermark is robust to many processing such as JPEG JPEG2000and Gaussian noise because the watermark bits are in-serted into the features of image.更多还原