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Facial expression recognition success rates with the different input channel number
| Input | #Channels | Accuracy |
|---|---|---|
| Raw Image (Single CNN) | 3-channel RGB | 89.44% |
| Final-iconize Image (CNN cascade) | 1-channel binary | 90.55% |
| Raw + Final-iconize Images (CNN Cascade) | 4-channel | 94.44% |
