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Values of FERET database.
| Method | N | Mean | Standard deviation |
Error standard deviation of the mean | Estimated difference |
t-value | P value | Degree of freedom |
|---|---|---|---|---|---|---|---|---|
| Wang et al. [46] (SIFT) |
4 | 80.13 | 4.29 | 2.1 | −12.50 | −4.24 | 0.00547 | 6 |
| Proposed method | 4 | 92.63 | 4.05 | 2.0 |
