基于Gabor滤波的鲁棒复制-粘贴图像取证方法  

A robust copy-move forgery forensic method based on Gabor filters

作　　者：凌宝红[1,2] 侯整风[1] 胡东辉[1] 郑淑丽[1] 

机构地区：[1]合肥工业大学计算机与信息学院,安徽合肥230009 [2]安徽广播影视技术职业学院信息工程系,安徽合肥230022

出　　处：《合肥工业大学学报（自然科学版）》2010年第7期980-983,共4页Journal of Hefei University of Technology：Natural Science

基　　金：安徽省自然科学基金资助项目(090412051);合肥工业大学科学研究发展基金资助项目(2009HGXJ0036)

摘　　要：复制-粘贴是一种常见的数字图像篡改技术,目前的复制-粘贴数字图像取证技术未考虑旋转和缩放攻击。文章提出了一种新的复制-粘贴数字图像取证方法,该方法选择了鲁棒的、抗旋转及抗缩放的图像Ga-bor特征,并结合量化的DCT系数进行图像块匹配,以检测篡改区域。实验结果表明,该方法具有较强的鲁棒性,可以抵御旋转、缩放攻击,同时也可以取得较好的检测准确率。Copy-move is a common digital image manipulation technique.Attacks such as rotation and scaling are not considered in current copy-move digital image forensic methods.A new copy-move detection method is proposed in this paper.Robust,anti-rotation and anti-scaling Gabor features are selected.Based on quantized DCT coefficients,image block matching algorithm is designed to detect the tampered block.Experimental results show that the method is robust enough to detect attacks such as rotation and scaling with high accuracy.

关 键 词：复制-粘贴 数字图像 取证 GABOR滤波 鲁棒性 

分 类 号：TP309.7[自动化与计算机技术—计算机系统结构]