Color Enhancement in Endoscopic Images Using Adaptive Sigmoid Function and Space Variant Color Reproduction

Table 15

Comparison of simulation speed between proposed method and other related works.

Methodology	Image size	Step  1	Step  2	Total time (sec.)
		Enhancement time (sec.)	Color reproduction time (sec.)
Proposed	256 × 256	1.909	20.614	22.523
	512 × 256	2.597	40.119	42.716
	512 × 512	3.182	81.779	84.961
[23, 24]	256 × 256	0.39	28.255	28.645
	512 × 256	1.519	72.956	74.475
	512 × 512	1.525	113.31	114.835
[21]	256 × 256	—	64.461	64.461
	512 × 256	—	117.921	117.921
	512 × 512	—	232.146	235.149
[22]	256 × 256	—	0.19	0.19
	512 × 256	—	0.81	0.81
	512 × 512	—	0.47	0.47