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

Table 8

Comparisons of statistic of visual representation with other related works.

Image number	Contrast measurement					Intensity measurement
	AHE [11]	CLAHE [12]	HBF [13]	BPDFHE [14]	Proposed	AHE [11]	CLAHE [12]	HBF [13]	BPDFHE [14]	Proposed
1
2
3
4
Average of 60 endoscopic images