Table 2.

Average accuracy of the localization regions of interest performed for all the tested thermal images, where Face – face region, LE – left eye region, RE – right eye region, LIC – left inner canthus of the eye region, RIC – right inner canthus of the eye region, SHT – standard hough transform, RHT – Randomized Hough Transform, PA – proposed algorithm.

Region	Average accuracy (%)
	SHT	RHT	PA
Face	95.1	97.3	97.3
LE	93.2	96.6	97.1
LIC	92.7	96.4	97.5
RE	92.9	96.9	97.1
RIC	92.7	97.1	97.5