Since the image after a first JPEG compression and double its DCT coefficients having some relevance, by this correlation is analyzed, and an image based on JPEG image compression characteristic double tamper detection algorithm, and the algorithm used to detect whether the image been tampered with and locate the tampered areas.

新建文件夹\12年长沙理工看双重压缩的JPEG图像篡改检测研究.kdh
..........\comp.asv
..........\comp.m
..........\JPEGCOMP_滑块.m
..........\改后.fig
..........\改前.fig

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