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Table 8 Performance of proposed approach among different datasets (CK+ 6 expressions, CK+ 7 expressions, RFD 7 expressions, RFD 8 expressions)

From: Facial expression recognition and histograms of oriented gradients: a comprehensive study

  Pecision Recall Accuracy F-score
CK+ 6 95.8 95.9 98.8 95.8
CK+ 7 94.3 94.1 98.5 94.1
RFD 7 94.9 94.9 98.5 94.8
RFD 8 93.0 92.9 98.2 92.9