Image Denoising via Nonlinear Hybrid Diffusion

Table 1

PSNR, MAE, and CPU time (seconds) of all methods.

	PSNR			MAE				CPU time(s)
				The synthetic image (128×128)
𝜎	20	35	50	𝜎	20	35	55	𝜎	20	35	55
AOS	39.00	35.43	32.94	AOS	1.86	2.75	3.48	AOS	0.43	0.41	0.54
PMS	40.70	36.61	33.72	PMS	1.65	2.43	3.30	PMS	1.33	2.65	3.91
PM	39.74	34.81	31.90	PM	1.78	2.76	3.66	PM	0.70	1.04	1.82
TV	37.08	34.05	31.36	TV	2.52	3.65	4.88	TV	4.41	7.57	11.15
				The Lena image (300×300)
𝜎	20	35	50	𝜎	20	35	50	𝜎	20	35	50
AOS	29.72	27.44	26.03	AOS	6.08	7.77	9.11	AOS	0.96	1.94	2.13
PMS	29.58	27.03	25.60	PMS	6.15	8.08	9.46	PMS	5.05	14.80	18.77
PM	28.81	25.55	23.81	PM	6.46	8.98	10.77	PM	2.30	4.78	12.24
TV	29.15	26.87	24.43	TV	6.38	8.23	9.93	TV	14.32	32.68	49.26
				The boat image (512×512)
𝜎	20	35	50	𝜎	20	35	50	𝜎	20	35	50
AOS	29.93	27.59	26.22	AOS	5.73	7.41	8.59	AOS	4.02	6.19	9.58
PMS	29.75	27.38	26.02	PMS	5.76	7.45	8.68	PMS	19.76	39.00	60.44
PM	28.64	25.85	24.17	PM	6.22	8.22	9.93	PM	9.24	14.90	18.90
TV	29.13	26.50	25.63	TV	5.97	7.98	8.98	TV	49.51	109.15	172.17