Table 10.
Best fitness values of Ostu's method for all algorithms.
| Image | K | Algorithms |
|||||||
|---|---|---|---|---|---|---|---|---|---|
| SOA [45] | HHOA [35] | FPA [18] | CS [19] | HS [15] | SCA [22] | BA [23] | COVID-HHOA | ||
| Medical1 | 6 | 1.5041e+03 | 1.5049e+03 | 1.5041e+03 | 1.5042e+03 | 1.4955e+03 | 1.5016e+03 | 1.5022e+03 | 1.5050e+03 |
| 8 | 1.5101e+03 | 1.5140e+03 | 1.5128e+03 | 1.5135e+03 | 1.5107e+03 | 1.5092e+03 | 1.5130e+03 | 1.5142e+03 | |
| 10 | 1.5164e+03 | 1.5191e+03 | 1.5175e+03 | 1.5163e+03 | 1.5161e+03 | 1.5122e+03 | 1.5175e+03 | 1.5195e+03 | |
| 12 | 1.5209e+03 | 1.5223e+03 | 1.5207e+03 | 1.5183e+03 | 1.5166e+03 | 1.5159e+03 | 1.5216e+03 | 1.5227e+03 | |
| 14 | 1.5210e+03 | 1.5239e+03 | 1.5232e+03 | 1.5209e+03 | 1.5169e+03 | 1.5218e+03 | 1.5235e+03 | 1.5246e+03 | |
| Medical2 | 6 | 3.9554e+03 | 3.9577e+03 | 3.9566e+03 | 3.9577e+03 | 3.9395e+03 | 3.9312e+03 | 3.9459e+03 | 3.9580e+03 |
| 8 | 3.9808e+03 | 3.9821e+03 | 3.9811e+03 | 3.9817e+03 | 3.9721e+03 | 3.9654e+03 | 3.9805e+03 | 3.9829e+03 | |
| 10 | 3.9855e+03 | 3.9930e+03 | 3.9901e+03 | 3.9922e+03 | 3.9752e+03 | 3.9754e+03 | 3.9900e+03 | 3.9940e+03 | |
| 12 | 3.9980e+03 | 4.0008e+03 | 3.9988e+03 | 3.9992e+03 | 3.9916e+03 | 3.9913e+03 | 3.9995e+03 | 4.0016e+03 | |
| 14 | 4.0010e+03 | 4.0061e+03 | 4.0028e+03 | 4.0020e+03 | 3.9941e+03 | 3.9980e+03 | 4.0032e+03 | 4.0067e+03 | |
| Medical3 | 6 | 6.1387e+03 | 6.1128e+03 | 6.1383e+03 | 6.1128e+03 | 6.1219e+03 | 6.1240e+03 | 6.1267e+03 | 6.1402e+03 |
| 8 | 6.1603e+03 | 6.1352e+03 | 6.1594e+03 | 6.1337e+03 | 6.1430e+03 | 6.1436e+03 | 6.1539e+03 | 6.1633e+03 | |
| 10 | 6.1744e+03 | 6.1482e+03 | 6.1717e+03 | 6.1470e+03 | 6.1652e+03 | 6.1627e+03 | 6.1721e+03 | 6.1757e+03 | |
| 12 | 6.1780e+03 | 6.1549e+03 | 6.1804e+03 | 6.1497e+03 | 6.1650e+03 | 6.1711e+03 | 6.1719e+03 | 6.1841e+03 | |
| 14 | 6.1809e+03 | 6.1590e+03 | 6.1854e+03 | 6.1564e+03 | 6.1801e+03 | 6.1792e+03 | 6.1863e+03 | 6.1882e+03 | |
| Medical4 | 6 | 2.2081e+03 | 2.2089e+03 | 2.2077e+03 | 2.2079e+03 | 2.1824e+03 | 2.2009e+03 | 2.1957e+03 | 2.2088e+03 |
| 8 | 2.2108e+03 | 2.2201e+03 | 2.2181e+03 | 2.2174e+03 | 2.2065e+03 | 2.2144e+03 | 2.2193e+03 | 2.2200e+03 | |
| 10 | 2.2242e+03 | 2.2280e+03 | 2.2258e+03 | 2.2239e+03 | 2.2181e+03 | 2.2226e+03 | 2.2202e+03 | 2.2285e+03 | |
| 12 | 2.2277e+03 | 2.2331e+03 | 2.2292e+03 | 2.2289e+03 | 2.2227e+03 | 2.2231e+03 | 2.2276e+03 | 2.2333e+03 | |
| 14 | 2.2322e+03 | 2.2358e+03 | 2.2332e+03 | 2.2328e+03 | 2.2328e+03 | 2.2280e+03 | 2.2353e+03 | 2.2367e+03 | |
| Medical5 | 6 | 5.3898e+03 | 4.8687e+03 | 5.3931e+03 | 4.8687e+03 | 5.3681e+03 | 5.3812e+03 | 5.3847e+03 | 5.3936e+03 |
| 8 | 5.4061e+03 | 4.8825e+03 | 5.4065e+03 | 4.8824e+03 | 5.4006e+03 | 5.4007e+03 | 5.4038e+03 | 5.4077e+03 | |
| 10 | 5.4108e+03 | 4.8893e+03 | 5.4122e+03 | 4.8893e+03 | 5.4034e+03 | 5.4066e+03 | 5.4125e+03 | 5.4145e+03 | |
| 12 | 5.4122e+03 | 4.8929e+03 | 5.4161e+03 | 4.8915e+03 | 5.4131e+03 | 5.4115e+03 | 5.4160e+03 | 5.4184e+03 | |
| 14 | 5.4160e+03 | 4.8955e+03 | 5.4192e+03 | 4.8941e+03 | 5.4164e+03 | 5.4167e+03 | 5.4186e+03 | 5.4208e+03 | |
| Medical6 | 6 | 4.3948e+03 | 4.2056e+03 | 4.3961e+03 | 4.2055e+03 | 4.3687e+03 | 4.3865e+03 | 4.3865e+03 | 4.3978e+03 |
| 8 | 4.4059e+03 | 4.2211e+03 | 4.4117e+03 | 4.2207e+03 | 4.4002e+03 | 4.4012e+03 | 4.4113e+03 | 4.4139e+03 | |
| 10 | 4.4157e+03 | 4.2287e+03 | 4.4193e+03 | 4.2282e+03 | 4.4129e+03 | 4.4129e+03 | 4.4199e+03 | 4.4209e+03 | |
| 12 | 4.4230e+03 | 4.2326e+03 | 4.4230e+03 | 4.2318e+03 | 4.4188e+03 | 4.4153e+03 | 4.4231e+03 | 4.4257e+03 | |
| 14 | 4.4246e+03 | 4.2343e+03 | 4.4259e+03 | 4.2340e+03 | 4.4215e+03 | 4.4219e+03 | 4.4265e+03 | 4.4278e+03 | |