Recognition of Facial Expressions under Varying Conditions Using Dual-Feature Fusion

Table 1

Number of selected images per expression from MMI, CK+, and SFEW database.

Dataset	Expression
	Neutral	Fear	Disgust	Angry	Surprised	Sad	Happy	Total
MMI	36	41	39	45	39	34	39	273
CK+	N/A	90	90	90	90	90	90	540
SFEW	N/A	50	41	50	50	50	50	291