基于内容自适应小波域鲁棒公开数字水印算法  

Content-based adaptive robust public watermarking algorithm

作　　者：李智[1] 陈孝威[1] 

机构地区：[1]贵州大学计算机科学与工程学院,贵州贵阳550025

出　　处：《计算机应用》2005年第9期2148-2150,2154,共4页journal of Computer Applications

基　　金：国家教育部春晖计划基金(200402)

摘　　要：提出一种在小波域实现的基于内容自适应的鲁棒公开数字水印算法。该算法的特点在于:充分利用人眼视觉特性(HVS)、挖掘原始载体图像内容、实现数字水印嵌入阈值的智能调节和自适应嵌入、增强算法的透明性和鲁棒性。实验结果表明:该算法不仅具有较好的透明性,而且对诸如叠加噪声、JPEG压缩、平滑滤波、几何剪切、图像增强、等攻击均具有较好的鲁棒性。A content-based adaptive robust public watermarking algorithm was presented, including several good points such as taking advantage of the characters of human visual to realize the adaptive watermarking embedding. According to the contents of original host image, the algorithm intelligently adjusts the threshold to embed watermarking adaptively and it doesn＇t need host image when detecting the information of watermarking.

关 键 词：离散小波变换(DWT) 人类视觉系统 HILBERT扫描 基于内容自适应阈值 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]