A Comparative Study of Improved Artificial Bee Colony Algorithms Applied to Multilevel Image Thresholding

Table 1

Essential parameters of the PSO, DPSO, and FODPSO.

Parameter	PSO	DPSO	FODPSO
Population	50	25	25
𝜌1	1.5	1.5	1.5
𝜌2	1.5	1.5	1.5
𝑊	1.2	1.2	1.2
𝑉max	2	2	2
𝑉min	−2	−2	−2
𝑥max	255	255	255
𝑥min	0	0	0
Min population	—	10	10
Max population	—	50	50
Num of swarms	—	4	4
Min swarms	—	2	2
Max swarms	—	6	6
Stagnancy	—	10	10
Fractional coefficient	—	—	0.75