作者: Dan Zhu , Zhiping Zhou
关键词:
摘要: JPEG compression and resampling operations appear frequently when image is tampered, hence the traces of are used to detect images. As affect linear correlation between coefficients, so introduced images resampled saved in format. Hence, moment DCT coefficient histogram taken as factor compression, due singular value decomposition can measure pixels well that mean variance values extracted. At last, two types features extracted trained by SVM. Experimental results show proposed method has a good detection rate for images, especially rotation operation scale which greater than 1.