Medical Image Visual Appearance Improvement Using Bihistogram Bezier Curve Contrast Enhancement: Data from the Osteoarthritis Initiative

Table 8

Categorization of contrast enhancement methods into homogenous subset using Duncan’s test for FSIM.

Method	𝑁	Subset for alpha = 0.05
		1	2	3	4	5
THE	20	0.72
DSIHE	20		0.77
BBHE	20			0.79
RSIHE	20				0.82
RMSHE	20				0.83
BBCCE	20					0.92
Sig.		1.00	1.00	1.00	0.12	1.00

Means for groups in homogeneous subsets are displayed.
Harmonic Mean Sample Size = 20.000.