Low-Light Image Enhancement Based on Guided Image Filtering in Gradient Domain

Table 1

The average IE, AEI, and operating time (sec) on twenty images.

	Average IE	Average AEI	Average time
Original	11.057	50.756	N/R
Traditional MSR	13.439	67.485	1.77
Hao et al.’s [14]	14.091	57.838	16.289
He et al.’s [17]	11.867	61.952	0.377
HE	14.761	83.874	0.281
Improved MSR [12]	13.234	83.606	7.915
Kim et al.’s [9]	15.193	96.477	0.867
The proposed method	15.478	114.297	0.698