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Characteristics of the Face Image Meta-Database (fIMDb).
| Total number of indexed images: | 4,080,183 |
| Unique stimulus sets: | 381 |
| Unique faces: | 497,356 |
| Unique F faces: | 25,221 (~57%; approximate) |
| Unique M faces: | 18,824 (~43%; approximate) |
| Viewpoints, median: | 1 |
| Includes multiple ethnicities: | 74.04% |
| Includes multiple ages: | 67.62% |
| Non-neutral stimuli, median: | 3 |
| Sources with meta-data: | 70.41% |
