基于模式分组和分辨率调整的盲图像水印算法  

A Blind Image Watermarking Technique Based on Pattern Group Coding and Resolution Adjustment

作　　者：雷贲[1] 张专成[1] 杨慧雅[1] 

机构地区：[1]武警工程学院,陕西西安710086

出　　处：《现代电子技术》2008年第1期113-114,共2页Modern Electronics Technique

摘　　要：提出了一个新的基于分组模式编码和分辨率调整的盲数字图像水印算法,该算法首先在图像的空间域中随机选取相应位置系数的比特位作为水印的嵌入区间,对选出的比特位根据分组编码原理生成预嵌入模式,然后将一个二值水印图像嵌入到模式中并对其进行分辨率调整。实验证明通过模式分组编码和分辨率调整相结合的方法,可达到水印图像透明性和鲁棒性之间较好的折衷,对于各种常见的图像处理操作具有较好的抵抗能力。It introduces a new blind digital image watermarking algorithm based on the group coding and resolution adjustment. Firstly it chooses the coefficients in the space domain randomly and uses the pattern coding to generate the pre - embedded pattern. Secondly it embeds the watermarking into the pattern and adjusts the resolution. It is showed in the experiments that this method has good performance between the sightlessness and the robustness as well as countering the digital image processing.

关 键 词：分组编码 分辨率调整 模式 水印 

分 类 号：TP391.41[自动化与计算机技术—计算机应用技术]