基于敏感区域的盲水印防伪系统

The Blind Watermarking System Preventing Forgery Base on Image's Characteristic Region

数字水印防伪技术是实现版权保护的重要手段.基于特征区域的盲水印技术将水印信号只叠加在人们感兴趣的部分.首先通过曲线跟踪算法选择特征物体,根据人眼对亮度信息的变化最为敏感性特点,利用盲水印算法将水印信息加入图像的亮度信息中.水印提取时不需要原始载体图像.因此除了具有现有数字水印系统的优点以外,还具有更高的鲁棒性和抗裁剪、抗旋转攻击等特殊功效.

Digital watermarking prevent forgery technique will be the important instrument to protect copyright. The blind watermarking technique preventing forgery base on Image's characteristic region overlays only the interested image with watermarking signal.First it choose characteristic object by curve track way. Follow that, as a result of eye is the most impressible on image’s lighteness change,it swings in image's lighteness information with watermarking by blind watermarking method,and picks-up watermarking without original carrier image. Therefore,not only this system has actual digital watermarking system's merit,but also possesses higher counteracting cut out, counteracting circumvolve attack,etc.