A detection method of image region-duplication forgery is proposed using Harris points and Hu invariant moments.First

Harris operator is applied to detect corners as feature points

then the former four dimentions of Hu moments are computed in the neighborhood of which as the center to constitute feature vector

and finally the occurrence frequency of position transfer vector is recorded to obtain matching interest points with thresholding processing

thus copy-move regions are marked.Experimental results show that the algorithm can not only detect multi-region copy-move manipulation effectively

but also be able to effectively resist various tampering post-processing operations

including additive white gaussian noise

JPEG compression

contrast

brightness and exposure adjustment and the hybrid operation of JPEG compression and noise addition.