Table 2.

The MSE values resulting from SaDE-CIQ, K-means, and PSO-CIQ.

Alg.	Peppers		Baboon		Lena		Airplane
	Min	Max	Min	Max	Min	Max	Min	Max
SaDE-CIQ	17.4682	18.7266	22.7496	23.3382	12.9709	13.8055	8.2482	8.9740
K-means	18.1086	21.2676	22.9532	24.9563	15.6401	19.1314	9.1141	10.4430
PSO-CIQ	36.3436	40.9532	35.8892	41.9940	29.6644	34.5867	21.3540	24.3200