利用传感器噪声对复制遮盖篡改的检测  

Detection of copy-move forgery using sensor noise

作　　者：詹玲超[1] 黄继风[1] 

机构地区：[1]上海师范大学数理信息学院计算机系,上海200234

出　　处：《计算机工程与设计》2007年第17期4307-4308,4318,共3页Computer Engineering and Design

摘　　要：由于现今功能强大的图像编辑软件很容易就可以得到,所以对数字图像进行操作和编辑变得非常的容易,在一幅图像中添加或移掉一个重要的人或物并且不留任何痕迹是很有可能的。如果这些篡改图用在媒体或法律上,对社会将造成很大的影响。随着数码相机和摄像机的不断普及,验证数码图像变得越来越重要了。利用相机的传感器噪声对复制遮盖篡改图像进行检测,并根据其模板噪声进一步确定篡改区域。对多幅图像进行操作,实验证明效果不错。Digital images are easy to manipulate and edit due to availability of powerful image processing and editing software. It is possible to add or remove important features from an image without leaving any obvious traces of tampering. These forgeries, if used in the mass media or courts of law, can have an important impact on our society. As digital cameras and video cameras replace their analog counterparts, the need for authenticating digital images becomes more and more important. The sensor noise is used to detect the copy-move forgery, then the exact tempered area is determined using the sensor pattern noise. The performance of the proposed method is demonstrated on several forged images and is proved to have good effect.

关 键 词：篡改图像 复制遮盖 传感器噪声 检测篡改 模板噪声 

分 类 号：TP391[自动化与计算机技术—计算机应用技术]