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Table 7 Performance of proposed approach (RFD 8 expressions)

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

  An Co Di Fe Ha Ne Sa Su
An 97.0 0 0 0 0 1.5 1.5 0
Co 1.5 88.1 0 0 0 7.5 2.9 0
Di 0 1.5 98.5 0 0 0 0 0
Fe 0 0 0 92.5 0 3.0 0 4.5
Ha 0 1.5 0 0 98.5 0 0 0
Ne 0 10.4 0 0 0 86.6 3.0 0
Sa 7.4 3.0 0 3.0 0 1.5 85.1 0
Su 0 1.5 0 0 0 1.5 0 97.0
  1. Average performances: recall = 92.9 %, precision = 93.0 %, accuracy = 98.2 %, F-score = 92.9 %. (orientation bins = 7, cell size = 7)
  2. An Anger, Co Contemptous, Di Disgusted, Fe Fearful, Ha Happy, Ne Neutral, Sa Sad, Su Surprised