A Novel Imperialist Competitive Algorithm for Multithreshold Image Segmentation

Table 11

The average CPU time of all algorithms (in seconds).

Example	ICA	PSO	GWO	TLBO	Example	ICA	PSO	GWO	TLBO
Test1_2	1.0148	1.8466	1.0573	1.2695	Test6_2	0.9013	1.8463	0.9634	1.1757
3	0.9968	1.9547	1.0824	1.2020	3	1.0516	2.0183	1.0631	1.4172
4	1.0817	2.1041	1.0777	1.2727	4	1.0725	2.1534	1.0789	1.3710
5	1.1677	2.2427	1.1135	1.3929	5	1.0992	2.2310	1.1540	1.4416
Test2_2	0.9160	2.1234	0.9569	1.1933	Test7_2	0.9479	1.9786	1.0088	1.2306
3	1.0238	2.1349	1.0966	1.2583	3	1.0616	2.0336	1.0571	1.3009
4	1.0121	2.2104	1.1203	1.4549	4	1.0868	2.2236	1.1175	1.3781
5	1.0935	2.2470	1.1195	1.4557	5	1.1588	2.3927	1.1682	1.4598
Test3_2	0.9684	1.8421	0.9593	1.2024	Test8_2	0.9654	1.9061	1.0042	1.2234
3	0.9690	1.9660	1.0271	1.2812	3	1.0587	2.0592	1.0648	1.2818
4	1.0981	2.1097	1.0739	1.3281	4	1.1558	2.2072	1.1166	1.3552
5	1.0956	2.2191	1.1637	1.4219	5	1.1965	2.3133	1.1706	1.4322
Test4_2	0.9394	1.8492	0.9677	1.2796	Test9_2	0.9599	1.8732	0.9750	1.2245
3	1.0026	1.9714	1.0213	1.2786	3	1.0476	1.9952	1.0556	1.2709
4	1.0562	2.1719	1.1014	1.3773	4	1.0656	2.1281	1.0893	1.3672
5	1.1098	2.2701	1.1188	1.3913	5	1.1195	2.2444	1.1403	1.4266
Test5_2	0.9514	2.3564	0.9939	1.2206	Test10_2	0.9563	1.9158	0.9922	1.3281
3	1.0401	2.0438	1.0557	1.2901	3	1.0342	2.0040	1.0496	1.3778
4	1.0839	2.1590	1.1043	1.3911	4	1.0759	2.2321	1.0948	1.3701
5	1.1561	2.3302	1.1637	1.4313	5	1.1585	2.3338	1.1481	1.4289