Source Digital Image Identification based on Cross-correlation
Yongjie Xie, Yi Bao, Sen Feng Tong, Yuhao Yang · Proceedings of the 2nd International Conference on Computer Science and Electronics Engineering (ICCSEE 2013) · 2013
Source camera detecting, which is about establishing whether or not the images of interest are taken by the same camera, is a challenging problem.Due to solve the digital image source identification problems, a new method is proposed using Cross-correlation Analysis.In the digital camera imaging process, PRNU (Photo-Response-Non-Uniformity) can be introduced as identify specific digital camera's fingerprint.The average operator of image residual noise collection product by images is to use mostly for the digital camera reference pattern noise model obtain.In order to locate the position of the sharp peak correlation value, crosscorrelation measure reference PRNU with image residual noise in the frequency domain is used.The position information considered as recognition feature of the image to which it yield.The experimental results show that the method had significantly improved average rate of source digital image identification.