Table 18. Confusion matrix of the proposed FER system with HMM (as a recognition model), instead of using the proposed recognition model (that is MEMM model) using AFEW dataset of facial expressions (Unit: %).

Expressions	Happy	Anger	Sad	Surprise	Fear	Disgust
Happy	89	1	2	3	1	4
Anger	2	87	3	3	4	1
Sad	4	3	88	2	1	2
Surprise	0	3	3	90	2	2
Fear	1	2	3	1	91	2
Disgust	1	2	3	0	2	92
Average	89.50