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

Table 4

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

Methods	RMSE	PFE	MAE	Entropy	SNR	PSNR	CC	ERGAS
Average method	34.2848	25.2737	19.4244	1.3784	10.7959	28.8138	0.9141	8.0940
Minimum method	19.0227	14.0230	8.5127	4.37283	15.3948	35.3721	0.9867	5.8235
DWT	12.7463	10.2732	2.0392	6.3726	20.8732	37.1203	0.9962	2.6384
SWT	12.6532	9.5487	1.1458	6.2843	20.4538	37.0410	0.9959	2.7072
DWT (Laplacian) proposed	12.6489	9.7323	1.1092	6.3743	21.8972	38.2932	0.9963	2.4832
DWT (unsharp) proposed	12.0283	9.9378	1.2872	6.4732	21.2342	38.0023	0.9962	2.6323
DWT (LF + DFT) proposed	12.0213	9.6384	0.9372	6.9983	23.2112	38.9923	0.9969	2.1234
SWT (Laplacian) proposed	12.4213	9.2197	0.9203	6.3283	21.8222	38.2166	0.9953	2.3003
SWT (unsharp) proposed	11.9650	9.8131	0.9288	6.3263	20.8144	37.3150	0.9959	2.9886
SWT (LF + DFT) proposed	11.5382	9.2123	0.8812	7.5932	23.3721	39.3872	0.9964	2.0232