摘要
为降低水印检测的虚警率和漏警率,提出一个泛化盲检测模型。通过在Matlab环境下的实验,遴选7个数字水印检测算法,采用顺序检测法对待检测图像进行检测,然后利用数据融合法综合分析检测结果,判断其中的水印信息。相对单个算法来说,泛化检测模式的检测效率更高,检测耗费时间大为缩短,对仿真实验所采用的17个数字水印嵌入系统进行检测,达到虚警率为5.495%,漏警率为1.648%,正确检测率为92.857%的结果。经过检测分析,泛化检测模型还对适度的剪切、拉伸、反色、旋转以及几何失真等攻击具有更高的抵抗能力。因此,该泛化检测模型具有较高的可行性。
A blind watermark detecting model was proposed to reduce the false alarm rate and the miss alarm rate on detecting. With Matlab software, image samples were detected by 7 different digital watermark detecting mothods one by one, whose detected results were analysed by data fusion method to discriminate the watermark information in the images. Compared by a single algorithm, the pan-methods discussed can shorten testing time and improve dectecting efficiency. When 17 digital watermark embedded systems were detected in the simulation experiment, the false alarm rate was 5. 495%, the miss alarm rate was 1. 648%, the validity rate reached 92. 857%. In addition, the methods discussed is less vulnerable to attacks of certain. In a word, the methods discussed has more feasibility than a single algorithm.
出处
《四川大学学报（工程科学版）》
EI
CAS
CSCD
北大核心
2007年第5期111-115,共5页
Journal of Sichuan University (Engineering Science Edition)
基金
部级项目(J05-04)
关键词
数字水印
盲水印检测
数据融合法
digital watermarking
blind watermark detector
data fusion method
