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

Table 5

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

(𝐼) Method	(𝐽) Method	Mean difference (𝐼−𝐽)	Std. error	𝑃 value	95% confidence interval
					Lower bound	Upper bound
THE	BBHE	50.04*	0.84	0.00	48.38	51.71
	DSIHE	41.59*	0.84	0.00	39.92	43.25
	RMSHE	63.37*	0.84	0.00	61.70	65.03
	RSIHE	60.00*	0.84	0.00	58.32	61.66
	BBCCE	62.57*	0.84	0.00	60.91	64.24
BBHE	THE	−50.04*	0.84	0.00	−51.71	−48.38
	DSIHE	−8.45*	0.84	0.00	−10.12	−6.79
	RMSHE	13.33*	0.84	0.00	11.66	14.99
	RSIHE	9.95*	0.84	0.00	8.28	11.62
	BBCCE	12.53*	0.84	0.00	10.86	14.20
DSIHE	THE	−41.59*	0.84	0.00	−43.25	−39.92
	BBHE	8.45*	0.84	0.00	6.79	10.12
	RMSHE	21.78*	0.84	0.00	20.11	23.45
	RSIHE	18.40*	0.84	0.00	16.74	20.07
	BBCCE	20.98*	0.84	0.00	19.32	22.65
RMSHE	THE	−63.37*	0.84	0.00	−65.03	−61.70
	BBHE	−13.33*	0.84	0.00	−15.00	−11.66
	DSIHE	−21.78*	0.84	0.00	−23.45	−20.11
	RSIHE	−3.38*	0.84	0.00	−5.04	−1.71
	BBCCE	−0.79	0.84	0.35	−2.46	0.87
RSIHE	THE	−60.00*	0.84	0.00	−61.66	−58.32
	BBHE	−9.95*	0.84	0.00	−11.62	−8.28
	DSIHE	−18.40*	0.84	0.00	−20.07	−16.74
	RMSHE	3.38*	0.84	0.00	1.71	5.04
	BBCCE	2.58*	0.84	0.00	0.92	4.25
BBCCE	THE	−62.57*	0.84	0.00	−64.24	−60.91
	BBHE	−12.53*	0.84	0.00	−14.20	−10.87
	DSIHE	−20.98*	0.84	0.00	−22.65	−19.32
	RMSHE	0.79	0.84	0.35	−0.87	2.46
	RSIHE	−2.58*	0.84	0.00	−4.25	−0.92

∗The mean difference is significant at the 0.05 level.