Hybrid Sharpening Transformation Approach for Multifocus Image Fusion Using Medical and Nonmedical Images

Table 2

Statistical comparisons of multifocus image fusion on the “clocks image set.”

Methods	RMSE	PFE	MAE	Entropy	SNR	PSNR	CC	ERGAS
Average method	28.4166	23.8202	7.8278	1.9823	14.5830	35.5127	0.9144	5.7748
Minimum method	11.5217	10.5229	4.4813	4.8810	18.6569	37.5496	0.9942	4.3994
DWT	7.7077	7.0396	0.4880	7.8322	22.1487	39.2955	0.9976	2.9858
SWT	7.5158	6.8643	0.4835	8.3824	22.3677	39.4050	0.9975	2.9862
DWT (Laplacian) proposed	6.9276	3.8344	0.4174	8.6432	24.5875	39.5099	0.9979	2.9839
DWT (unsharp) proposed	7.5207	4.4390	0.4166	8.6343	24.6678	39.5500	0.9976	2.9624
DWT (LF + DFT) proposed	6.1766	3.5184	0.4107	9.0001	26.7923	40.1006	0.9980	2.2845
SWT (Laplacian) proposed	6.9978	3.9638	0.4110	8.8432	25.0712	39.7517	0.9978	2.8676
SWT (unsharp) proposed	6.9049	3.9811	0.4101	8.7321	25.1449	39.7886	0.9975	2.8731
SWT (LF + DFT) proposed	5.6761	3.4278	0.4010	9.0121	26.8609	40.1349	0.9978	2.2589