一种基于小波域特征树量化的数字水印算法  

A Novel Watermarking Algorithm Based on Feature Tree Quantization

作　　者：沈玉利[1] 姚俊[1] 郭雷[1] 

机构地区：[1]西北工业大学

出　　处：《计算机应用研究》2006年第1期233-234,共2页Application Research of Computers

基　　金：国家自然科学基金资助项目(60175001)

摘　　要：首先使用尺度交互式特征检测算法提取图像小波域逼近子图的特征点,然后构造相应的特征树,最后对特征树所有节点进行量化以嵌入二值水印信息。水印信息嵌入到图像的特征之中,对JPEG,JPEG 2000以及高斯白噪音等多种处理具有较强的鲁棒性。The feature points in the lowest approximation of the original image are extracted with the scale interaction model for feature detection and the feature tree is created corresponding to these feature points. Then the binary watermark bits are embedded by feature tree quantization. The watermark are robust to many processing such as JPEG, JPEG 2000 and Gaussian noise because the watermark bits are inserted into the features of image.

关 键 词：数字水印 尺度交互式特征检测算法 特征树量化 

分 类 号：TP301.6[自动化与计算机技术—计算机系统结构]