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Table 4 Performance of proposed approach (CK+ 6 expressions)

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

 

An

Di

Fe

Ha

Sa

Su

An

88.6

4.5

2.4

0

4.5

0

Di

5.6

89.0

1.8

1.8

0

1.8

Fe

0

0

100

0

0

0

Ha

0

0

0

100

0

0

Sa

0

0

0

0

100

0

Su

1.3

0

1.3

0

0

97.4

  1. Average performances: recall = 95.9 %, precision = 95.8 %, accuracy = 98.8 %, F-score = 95.8 %. (orientation bins = 7, cell size = 7)
  2. An Anger, Di Disgusted, Fe Fearful, Ha Happy, Sa Sad, Su Surprised