Realized based on double JPEG compressed image tamper detection algorithm, which traverses the compression factor of the JPEG image compression again, judging by the quality factor of the original image size distortion, the algorithm can locate tampered area

ddforplatform
.............\Debug
.............\.....\ddforplatform.exe
.............\.....\ddforplatform.ilk
.............\.....\ddforplatform.pdb
.............\ddforplatform
.............\.............\3rdcompressed.jpg
.............\.............\Debug
.............\.............\.....\CL.read.1.tlog
.............\.............\.....\CL.write.1.tlog
.............\.............\.....\ddforplatform.Build.CppClean.log
.............\.............\.....\ddforplatform.lastbuildstate
.............\.............\.....\ddforplatform.log
.............\.............\.....\ddfunction.obj
.............\.............\.....\detection.obj
.............\.............\.....\link.1100-cvtres.read.1.tlog
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.............\.............\.....\link.2

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