An Improved Quantum-Inspired Genetic Algorithm for Image Multilevel Thresholding Segmentation

Table 4

Comparison of the objective function values with C = 2, 3, 4.

Image	C	Objective function values
		GA	QGA	IQGA	PSO
Cameraman	2	12.1687	12.1687	12.1687	12.1687
	3	15.2174	15.2273	15.2273	15.1733
	4	18.3864	18.3949	18.3955	18.3902
Hunter	2	12.6333	12.6356	12.6356	12.6333
	3	15.8115	15.8020	15.8115	15.8020
	4	18.7101	18.7421	18.7441	18.7374
Baboon	2	12.2167	12.2167	12.2167	12.2167
	3	15.2772	15.2789	15.2801	15.2782
	4	18.1263	18.1278	18.1304	18.1294
Scene	2	12.5244	12.5253	12.5253	12.5248
	3	15.5618	15.5654	15.5654	15.5253
	4	18.3606	18.3631	18.3681	18.3647
Tree	2	12.1671	12.1676	12.1676	12.1676
	3	15.3270	15.3270	15.3270	15.3270
	4	18.0272	18.0300	18.0325	18.0246
F16	2	12.2114	12.2114	12.2114	12.2114
	3	15.5022	15.5038	15.5038	15.5028
	4	18.3082	18.3104	18.3120	18.2972
Lena	2	12.3469	12.3471	12.3471	12.3471
	3	15.3174	15.3174	15.3183	15.3168
	4	17.9775	18.0079	18.0126	18.0061
Peppers	2	12.5311	12.5532	12.5532	12.5532
	3	15.7133	15.8116	15.8258	15.8205
	4	18.7338	18.7338	18.7338	18.7334