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Table 2 Average performance of the proposed CNN estimator in the aligned case for QF2=90, and comparison with the state-of-the-art

From: Boosting CNN-based primary quantization matrix estimation of double JPEG images via a classification-like architecture

  Prop CNN CNN in [10] [5] [7]
AvgAcc 0.627 0.463 0.366 0.518
AvgMSE 1.120 1.326 28.016 9.091