Table 11.

Best fitness values of Kapur's entropy for all algorithms.

Image	K	Algorithms
		SOA [45]	HHOA [35]	FPA [18]	CS [19]	HS [15]	SCA [22]	BA [23]	COVID-HHOA
Medical1	6	29.1150	29.1440	28.4842	28.5451	28.4039	28.4511	28.9466	29.1497
	8	36.4624	36.6540	35.1770	35.7679	35.6282	36.1923	36.0033	36.7475
	10	42.8551	43.2945	42.1935	42.2456	41.7597	41.3143	42.9482	44.0402
	12	48.0268	49.6176	46.7989	46.3681	45.9796	46.5262	47.9183	50.1440
	14	53.1311	54.8167	52.5195	52.4872	50.0722	51.4593	53.2681	55.7106
Medical2	6	30.0560	30.0624	29.2634	29.3301	29.1013	29.5610	29.7242	30.1228
	8	37.4817	37.6122	36.3408	36.4637	36.4182	37.0426	37.3252	37.5760
	10	44.1656	44.5172	41.9516	43.6734	42.7747	42.7167	43.6806	44.7035
	12	50.0224	50.2347	49.0840	48.5610	47.7153	49.4137	50.2842	50.9972
	14	55.3181	56.5864	53.2115	53.1273	52.3780	52.7230	55.0156	56.9942
Medical3	6	29.4506	29.4480	28.6691	23.1739	28.4564	29.4011	29.2656	29.4703
	8	37.2324	37.3536	35.0245	28.3095	35.1488	36.4795	36.0121	37.3482
	10	43.5538	44.2176	42.3845	32.7091	41.7464	42.8749	42.8232	44.3337
	12	49.1426	50.3112	47.7115	36.5965	47.5394	48.0504	49.5033	50.4694
	14	52.4016	56.0881	52.5454	40.3468	52.2408	52.9522	54.6020	56.1094
Medical4	6	29.7038	29.8214	29.0196	29.4504	29.3854	29.2795	29.4105	29.8370
	8	36.5791	36.8520	35.7648	35.8712	35.9158	36.3379	36.2300	36.9593
	10	42.8729	43.6696	40.4616	41.3581	41.8134	42.2490	42.7692	43.7918
	12	47.4509	49.5428	46.0389	47.2014	46.8216	47.7198	48.9814	49.5914
	14	54.1334	55.1970	51.3232	52.4321	51.3109	52.4020	54.7969	55.4478
Medical5	6	27.5392	27.6409	26.9876	21.7552	26.9903	27.1946	27.1707	27.6422
	8	35.0168	35.1453	33.7456	27.3895	34.5749	34.5868	33.8298	35.2417
	10	41.1285	42.0444	40.8043	31.4742	39.7802	40.7294	41.1127	42.1571
	12	47.0732	48.4408	46.2316	35.6166	45.5961	46.2532	48.1818	48.5939
	14	52.6506	54.3979	50.5047	39.2780	50.1560	50.3272	53.5915	54.5965
Medical6	6	28.9177	29.0004	27.9225	22.9562	34.5683	28.6647	28.2243	29.0004
	8	36.0479	36.9304	34.5297	27.9091	36.3630	35.8314	36.3014	36.9257
	10	43.0778	43.5536	40.2129	32.3120	40.6346	42.0560	42.1871	43.6132
	12	48.8374	49.6670	47.4302	36.4025	45.0181	46.1182	48.5252	49.8300
	14	52.3678	55.3890	51.7384	39.7488	51.7612	50.7992	52.9835	54.4504