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Table 2 Average percentage presence of the seven binary parameters for different expressions

From: Facial expression (mood) recognition from facial images using committee neural networks

Binary parameter Average percentage presence of parameter
  Neutral Angry Disgust Fear Happy Sad Surprised
Upper teeth visible 0.00 0.00 13.33 93.10 83.91 0.00 57.89
Lower teeth visible 0.00 0.00 6.67 77.59 37.93 0.00 47.37
Forehead lines 0.00 0.00 2.22 29.31 0.00 14.52 69.74
Eyebrow lines 0.00 73.81 86.67 50.00 0.00 20.97 30.26
Nose lines 0.00 61.90 88.89 31.03 0.00 4.84 0.00
Chin lines 0.00 80.95 22.22 10.34 0.00 85.48 0.00
Nasolabial lines 0.00 16.67 84.44 56.90 97.70 9.68 9.21
  1. Averages were calculated over the entire dataset of ninety-seven subjects
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