基于数码相机固有特性的篡改检测

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。如果这些篡改图像用在媒体或法律上，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，验证数字图像变得越来越重要了。文章利用数码相机的两个固有特性对图像进行篡改检测，对多幅图像进行操作，实验证明有不错的检测效果。
关键字：篡改图像；颜色滤波阵列；传感器噪声；检测篡改；模板噪声
Abstract: 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. This article uses two inherent attributes of the
digital camera to detect the forgery. The performance of the proposed method is demonstrated on several forged images and has been proved to have good effect.
Keywords: Image Forgery; Color Filter Array; Sensor Noise; Detect Forgery; Pattern Noise