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

Table 3

Categorization of different methods using Fisher’s Least Significance Difference (LSD) for EME.

(𝐼) Method	(𝐽) Method	Mean difference (𝐼−𝐽)	Std. error	𝑃 value	95% confidence interval
					Lower bound	Upper bound
THE	BBHE	1.92*	0.56	0.00	0.81	3.04
	DSIHE	0.61	0.56	0.28	−0.51	1.73
	RMSHE	4.29*	0.56	0.00	3.17	5.41
	RSIHE	−7.12*	0.56	0.00	−8.23	−6.00
	BBCCE	6.18*	0.56	0.00	5.07	7.30
BBHE	THE	−1.92*	0.56	0.00	−3.04	−0.81
	DSIHE	−1.31*	0.56	0.02	−2.43	−0.20
	RMSHE	2.37*	0.56	0.00	1.25	3.48
	RSIHE	−9.04*	0.56	0.00	−10.16	−7.92
	BBCCE	4.26*	0.56	0.00	3.14	5.38
DSIHE	THE	−0.61	0.56	0.28	−1.73	0.51
	BBHE	1.31*	0.56	0.02	0.20	2.43
	RMSHE	3.68*	0.56	0.00	2.56	4.80
	RSIHE	−7.73*	0.56	0.00	−8.84	−6.61
	BBCCE	5.57*	0.56	0.00	4.46	6.70
RMSHE	THE	−4.29*	0.56	0.00	−5.41	−3.17
	BBHE	−2.37*	0.56	0.00	−3.48	−1.25
	DSIHE	−3.68*	0.56	0.00	−4.80	−2.56
	RSIHE	−11.41*	0.56	0.00	−12.53	−10.29
	BBCCE	1.89*	0.56	0.00	0.78	3.01
RSIHE	THE	7.12*	0.56	0.00	6.00	8.23
	BBHE	9.04*	0.56	0.00	7.92	10.16
	DSIHE	7.73*	0.56	0.00	6.61	8.84
	RMSHE	11.41*	0.56	0.00	10.29	12.53
	BBCCE	13.30*	0.56	0.00	12.18	14.41
BBCCE	THE	−6.18*	0.56	0.00	−7.30	−5.07
	BBHE	−4.26*	0.56	0.00	−5.38	−3.14
	DSIHE	−5.57*	0.56	0.00	−6.69	−4.46
	RMSHE	−1.89*	0.56	0.00	−3.01	−0.78
	RSIHE	−13.30*	0.56	0.00	−14.42	−12.18

∗The mean difference is significant at the 0.05 level.