Improved Bat Algorithm Applied to Multilevel Image Thresholding

Table 7

The percent of the best results for thresholds 4 and 5.

Alg.	Kapur’s method	Otsu’s method
PSO	8%	8%
DE	0%	0%
CS	67%	58%
FA	67%	92%
BA	42%	83%
IBA	100%	100%