说明：  针对现有的图像复制遮盖篡改检测算法需要某些先验信息、对后处理操作失效且计算量大等问题, 借鉴图像匹配技术中的SIFT(scale invariant feature transform)特征匹配算法,首次提出将其用于检测复制 遮盖的篡改操作。
(Cover the existing image copy for tamper detection algorithm needs some prior information on the calculation of post-processing and the failure of large issues, draw the image matching technology in the SIFT (scale invariant feature transform) features matching algorithm, first proposed The cover copy for the detection of the tampering operation.)