Antireflective Boundary Conditions for Deblurring Problems

Table 2

Test I: best RREs and 𝐿² norm of the residuals for CG with reblurring varying the SNR (SNR =∞ means 0% of noise).

SNR	Relative restoration errors			𝐿^2 norm of the residuals (‖𝐠−𝐴𝐟‖̂^2)
	Periodic	Reflective	Antireflective	Periodic	Reflective	Antireflective
∞	0.2275	0.1993	0.1831	1.2363	0.0113	0.0004
50	0.2276	0.1996	0.1850	1.2728	0.0480	0.0374
40	0.2278	0.2007	0.1921	1.6078	0.3766	0.3654
30	0.2300	0.2088	0.2051	4.9395	3.7346	3.7133
20	0.2487	0.2382	0.2378	38.2357	37.2100	37.2149
10	0.3836	0.3814	0.3823	379.2445	376.0303	376.0419