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Table 4 Average performance of the proposed CNN estimator in the aligned case for QF2=80, 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 0.360 0.254 0.202 0.282
AvgMSE 5.594 4.970 35.453 15.061