how to detect double compressed JPEG images using DCT coefficients?

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Ajay Ganti
Ajay Ganti 2018년 2월 28일
댓글: Ajay Ganti 2018년 2월 28일
I have a problem related to jpeg compression. How to detect double compressed images using DCT coefficients? Also it is said to plot the histograms for DCT coefficients at frequencies (1,1), (1,2), (2,1) and (2,2) positions. Please help me to do it

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