Hierarchical Artificial Bee Colony Optimizer with Divide-and-Conquer and Crossover for Multilevel Threshold Image Segmentation

Table 2

HABC’s results on nine test functions with different swarm number N.

Swarm number ()		2	6	10	14	18
	Mean	0 ()	0 ()	0 ()	0 ()	0 (9.3e + 003)
	Std.	0	0	0	0	0
	Mean	0 ()	0 ()	0 ()	0 ()	0 (8.0e + 003)
	Std.	0	0	0	0	0
	Mean	0 ()	0 ()	0 ()	0 ()	0 (1.1e + 004)
	Std.	0	0	0	0	0
	Mean	0 ()	0 ()	0 ()	0 ()	0 ( )
	Std.	0	0	0	0	0
	Mean
	Std.
	Mean	0 ()	0 ()	0 ()	0 ()	0 (2.6e + 004)
	Std.	0	0	0	0	0
	Mean
	Std.
	Mean	0 ()	0 ()	0 ()	0 ()	0 (8.9e + 003)
	Std.	0	0	0	0	0