Table 1.

Comparison of restoration performance and processing time for three test images, where the center region is blurred by Gaussian with σ = 3.0, and the peripheral region is blurred with σ = 0.8.

Input Image	Restoration Method	PSNR [dB]			MSSIM			Average Processing Time [second]
		ση = 0.001	0.0001	0.00001	ση = 0.001	0.0001	0.00001
	Dong [24]	18.81	20.43	20.59	0.69	0.79	0.81	309.5804
	Yang [25]	22.92	23.29	22.94	0.78	0.87	0.91	5.5511
	Xu [12]	18.77	22.01	22.23	0.75	0.84	0.84	1736.3780
	Shen [14]	23.81	25.62	25.76	0.82	0.90	0.91	66.1389
	Proposed	24.43	26.75	27.47	0.83	0.91	0.92	0.6401
	Dong [24]	17.96	19.46	19.57	0.74	0.83	0.85	315.0760
	Yang [25]	22.13	22.64	22.03	0.83	0.89	0.93	5.8107
	Xu [12]	15.02	18.00	18.10	0.66	078	0.79	1592.6384
	Shen [14]	22.31	23.34	23.35	0.86	0.91	0.92	68.7075
	Proposed	22.38	25.21	25.84	0.87	0.93	0.94	0.5869
	Dong [24]	24.57	28.87	29.88	0.60	0.86	0.93	287.5568
	Yang [25]	25.40	25.88	25.77	0.65	0.79	0.88	4.8221
	Xu [12]	20.29	29.57	30.17	0.73	0.91	0.94	2025.9904
	Shen [14]	26.55	31.72	31.55	0.79	0.93	0.94	72.4971
	Proposed	28.36	31.48	32.78	0.81	0.94	0.96	0.5938