Hybrid Artificial Root Foraging Optimizer Based Multilevel Threshold for Image Segmentation

Table 2

Parameters of CEC 2014 test functions ( is the optimal solution; is the best values of function; and is the shifted global optimum defined in “shift_data_x.txt,” which is randomly distributed in ).

	Functions	Dimensions	Initial range
	Rotated High Conditioned Elliptic Function	30			100
	Rotated Bent Cigar Function	30			200
	Rotated Discus Function	30			300
	Shifted and Rotated Rosenbrock’s Function	30			400
	Shifted and Rotated Ackley’s Function	30			500
	Shifted and Rotated Weierstrass Function	30			600
	Shifted and Rotated Griewank’s Function	30			700
	Shifted Rastrigin’s Function	30			800
	Shifted and Rotated Rastrigin’s Function	30			900
	Shifted Schwefel’s Function	30			1000