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Table 6 Performance of proposed approach (RFD 7 expressions)

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

  An Co Di Fe Ha Sa Su
An 98.4 0 0 0 0 1.6 0
Co 3.0 92.5 0 1.5 0 3.0 0
Di 0 0 97.0 0 0 1.5 1.5
Fe 0 1.5 0 94.0 0 1.5 3.0
Ha 0 0 0 0 100 0 0
Sa 6.0 1.5 1.5 7.4 0 83.6 0
Su 0 1.5 0 0 0 0 98.5
  1. Average performances: recall = 94.9 %, precision = 94.9 %, accuracy = 98.5 %, F-score = 94.8 %. (orientation bins = 7, cell size = 7)
  2. An Anger, Co Contemptous, Di Disgusted, Fe Fearful, Ha Happy, Sa Sad, Su Surprised