Fig. 5From: Boosting CNN-based primary quantization matrix estimation of double JPEG images via a classification-like architectureAverage accuracy when QF1<QF2 (top left) and when QF1≥QF2 (top right), average MSE when QF1<QF2 (bottom left) and when QF1≥QF2 (bottom right) of the estimation for each of the 15 DCT coefficients, for QF2=90, in aligned DJPEG scenarioBack to article page