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

Table 12

Color similarity assessment.

Similarity between two color images			MSSIM	SHSIM
Image 1	Image 2
Original image	Proposed	2.97	0.9851	0.9992
	[21]	4.1	0.8605	0.8578
	[22]	0.6	0.8714	0.8001
	[23, 24]	3.01	0.9567	0.9942