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

Table 3

Statistical comparisons of multifocus image fusion on “books image set.”

Methods	RMSE	PFE	MAE	Entropy	SNR	PSNR	CC	ERGAS
Average method	26.2368	25.2586	10.6240	7.9872	11.2489	33.9757	0.9024	10.0925
Minimum method	14.4007	13.8638	4.7984	12.3321	16.4595	36.5810	0.9900	6.7961
DWT	10.9863	10.5767	0.1636	17.2384	18.8102	37.7563	0.9944	3.2366
SWT	10.9503	10.5421	0.1635	18.0932	18.8386	37.7705	0.9945	3.2408
DWT (Laplacian) proposed	10.0025	8.9378	0.1703	18.7548	18.8151	37.8540	0.9921	2.8606
DWT (unsharp) proposed	10.7051	8.6659	0.1707	18.7384	18.7955	37.8190	0.9926	2.7746
DWT (LF + DFT) proposed	9.1990	8.7186	0.1636	21.3843	18.8614	39.5801	0.9964	2.4083
SWT (Laplacian) proposed	10.4319	8.3976	0.1604	18.6342	18.8665	37.8797	0.9933	2.7049
SWT (unsharp) proposed	10.4895	8.1775	0.1708	18.7832	18.8558	37.7342	0.9936	2.6349
SWT (LF + DFT) proposed	9.0836	8.2106	0.1633	22.3221	18.9047	39.5318	0.9968	2.0744