HDR Pathological Image Enhancement Based on Improved Bias Field Correction and Guided Image Filter

Table 1

Comparison of GIF and BF in run time (unit: second).

Methods	Images
	Group 1; ()	Group 2; ()	Group 3; ()	Group 4; ()	Group 5; ()
GIF	1.0483	6.0847	0.0506	0.0285	0.0262
BF	22.6512	0.2554	1.8595	0.5634	0.3692