A Novel Imperialist Competitive Algorithm for Multithreshold Image Segmentation

Table 5

The average values of Kapur’s objective values.

Example	ICA	PSO	GWO	TLBO	Example	ICA	PSO	GWO	TLBO
Test1_2	12.3466	12.3466	12.2945	12.3466	Test6_2	12.6616	12.6616	12.6167	12.6616
3	15.3183	15.3183	15.2436	15.3181	3	15.8436	15.8436	15.7336	15.8434
4	18.0095	18.0057	17.8894	18.0023	4	18.6512	18.6436	18.3885	18.6363
5	20.6095	20.6095	20.1170	20.5508	5	21.4315	21.4315	20.8351	21.4053
Test2_2	12.2115	12.2115	12.1910	12.2114	Test7_2	12.9606	12.9606	12.9265	12.9606
3	15.5039	15.5039	15.2467	15.5013	3	16.2204	16.2204	16.0922	16.2178
4	18.3121	18.3121	18.0079	18.3087	4	19.3650	19.3650	19.0597	19.3487
5	20.9087	20.9087	20.0152	20.8759	5	22.1924	22.1393	21.5222	22.1388
Test3_2	12.2178	12.2178	12.1838	12.2178	Test8_2	11.2873	11.2873	11.2329	11.2873
3	15.2792	15.2792	15.1968	15.2790	3	14.1184	14.1185	13.9991	14.1177
4	18.1267	18.1264	17.9916	18.1130	4	16.6985	16.6646	16.5734	16.6814
5	20.7896	20.7895	20.3838	20.7483	5	19.7066	19.6472	19.1285	19.6403
Test4_2	12.6346	12.6346	12.5996	12.6346	Test9_2	12.6390	12.6390	12.6015	12.6390
3	15.6887	15.6887	15.6841	15.6877	3	15.5952	15.5952	15.5491	15.5936
4	18.5221	18.5066	18.3674	18.5258	4	18.5295	18.5295	18.3060	18.5248
5	21.2818	21.2626	20.6440	21.2553	5	21.1794	21.1922	20.8378	21.1554
Test5_2	12.6357	12.6357	12.5795	12.6357	Test10_2	12.9682	12.9682	12.9528	12.9682
3	15.8115	15.8115	15.6541	15.8107	3	16.1254	16.1254	15.9787	16.1251
4	18.7347	18.6983	18.4361	18.7110	4	19.0579	19.0579	18.7716	19.0463
5	21.6195	21.5351	21.1728	21.5724	5	21.8082	21.8088	21.3168	21.7935