Table 10.

Friedman test for WOA-DE-Kapur, ABF-Otsu, and CSA-MCET on MR images.

K	Average Rank			p-Value
	WOA-DE-Kapur	ABF-Otsu	CSA-MCET
2	1.6667	2.0000	2.3333	2.2619 × 10−7
3	1.5833	2.5833	1.8333	1.1603 × 10−8
4	2.0000	1.6667	2.3333	7.2217 × 10−9
5	1.0833	2.7500	2.1667	5.3467 × 10−9