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The Scientific World Journal
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2014
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Article
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Tab 4
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Research Article
Comparative Study of Human Age Estimation with or without Preclassification of Gender and Facial Expression
Table 4
The number of images used for the comparative experiments with/without the preclassification of facial expression.
Database
Number of learning images
Number of testing images
Facial expression database
Annoyed
21
19
Happy
130
128
Neutral
291
289
Sad
32
32
Surprised
39
38
Total
513
506
Whole
PAL database
523
522