An efficient digital image tamper detection method is presented in this paper, which combines Discrete Wavelet Transform(DWT)with ORB feature extraction algorithm. It can meet the requirements of real-time feature extraction and copy-move tamper detection. Frist DWT is applied on an image to decompose it into LL, LH, HL and HH four parts. Then ORB algorithm is applied on LL part to extract the key points, binary descriptor vector—r BRIEF is constructed. Finally,to achieve the purpose of tamper detection, ha...