[Retracted] Signal-to-Noise Ratio Comparison of Several Filters against Phantom Image

Table 2

Comparison of the proposed approach with existing methods under the presence of quality measurement techniques against the phantom image (as shown in Figure 6).

Methods	Noise level	SSIM	MSE	RMSE	PSNR
[41]	0.2	0.88	19.85	13.08	22.64
	0.4	0.84	26.66	18.61	18.91
[42]	0.2	0.80	24.76	14.72	15.28
	0.4	0.90	19.01	16.99	23.05
[43]	0.2	0.85	23.89	13.91	18.89
	0.4	0.80	18.94	15.76	16.58
[44]	0.2	0.83	22.67	11.90	22.75
	0.4	0.86	18.41	14.84	18.41
Proposed approach	0.2	0.65	14.89	11.33	13.78
	0.4	0.72	15.30	12.88	16.38