Boundary Value Problems

Table 2 PSNR, MAE, \(\mathrm{PSNR}_{\mathrm{E}}\), and CPU time (seconds) of all methods for the Lena image (\(300\times 300\))

From: A class of singular diffusion equations based on the convex–nonconvex variation model for noise removal

	σ
	PSNR		MAE		\(\mathrm{PSNR}_{\mathrm{E}}\)		CPU(s)
	20	30	30	50	30	50	30	50
PMS	29.64	27.97	8.40	10.36	11.35	\( \textbf{10}\textbf{.}\textbf{09} \)	1.69	4.86
AOS	29.94	28.13	8.11	10.00	11.75	\( \textbf{10}\textbf{.}\textbf{64} \)	0.65	0.83
PM	28.49	26.36	9.58	12.25	10.77	9.53	0.80	0.92
TV	28.62	26.84	9.42	11.33	10.87	9.71	0.73	4.02

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