A Residual-Based Kernel Regression Method for Image Denoising

Table 1

A comparison of different denosing methods.

Image	Method
		PSNR	SSIM	PSNR	SSIM	PSNR	SSIM	PSNR	SSIM	PSNR	SSIM
Lena	BF	27.56	0.86	27.36	0.85	27.12	0.83	26.83	0.81	26.51	0.79
	SAF	30.20	0.84	28.73	0.78	27.43	0.73	26.30	0.68	25.30	0.63
	Proposed	31.65	0.92	30.64	0.89	29.67	0.87	28.78	0.84	27.95	0.81
	Wiener [28]	28.98	0.85	28.57	0.82	27.71	0.80	26.98	0.78	26.27	0.76
	Kuwahara [29]	27.16	0.82	26.14	0.77	25.12	0.72	24.26	0.68	23.44	0.63
	NCD [30]	29.94	0.86	28.99	0.82	27.92	0.76	26.94	0.71	25.90	0.67
	BiShrink [31]	31.17	0.90	30.16	0.88	29.41	0.87	28.64	0.84	28.18	0.83
	NeighShrinkSURE [32]	31.52	0.91	30.53	0.89	29.69	0.87	29.01	0.85	28.40	0.84
	OWT-SURELET [33]	31.37	0.91	30.35	0.89	29.56	0.87	28.88	0.85	28.31	0.84
	O-ITV [34]	30.78	0.91	30.04	0.88	28.72	0.84	26.79	0.76	24.81	0.67
	BM3D [35]	33.02	0.93	32.05	0.92	31.25	0.91	30.53	0.89	29.85	0.87
Pirate	BF	26.04	0.81	25.91	0.80	25.74	0.78	25.54	0.77	25.29	0.75
	SAF	29.03	0.86	27.85	0.82	26.77	0.77	25.78	0.73	24.88	0.69
	Proposed	29.15	0.89	28.50	0.87	27.83	0.85	27.17	0.82	26.52	0.80
	Wiener [28]	28.41	0.85	27.21	0.83	26.53	0.81	25.93	0.78	25.31	0.76
	Kuwahara [29]	26.48	0.83	25.54	0.79	24.63	0.75	23.77	0.70	23.03	0.66
	NCD [30]	28.50	0.87	27.88	0.84	27.12	0.80	26.34	0.76	25.52	0.72
	BiShrink [31]	29.01	0.88	28.09	0.84	27.29	0.81	26.69	0.79	26.17	0.76
	NeighShrinkSURE [32]	29.30	0.88	28.30	0.85	27.51	0.83	26.90	0.80	26.36	0.78
	OWT-SURELET [33]	29.41	0.89	28.44	0.86	27.69	0.83	27.08	0.81	26.57	0.78
	O-ITV [34]	29.05	0.87	28.61	0.86	27.65	0.83	26.09	0.77	24.34	0.71
	BM3D [35]	30.20	0.91	29.17	0.89	28.36	0.87	28.19	0.85	27.61	0.83
Boat	BF	24.95	0.79	24.83	0.78	24.69	0.76	24.51	0.75	24.30	0.73
	SAF	28.79	0.86	27.66	0.81	26.60	0.76	25.61	0.72	24.70	0.67
	Proposed	28.85	0.88	28.18	0.87	27.51	0.84	26.85	0.82	26.18	0.79
	Wiener [28]	28.21	0.85	26.76	0.82	26.07	0.80	25.43	0.77	24.90	0.74
	Kuwahara [29]	25.90	0.82	25.04	0.77	24.23	0.73	23.44	0.69	22.72	0.65
	NCD [30]	27.93	0.86	27.34	0.82	26.65	0.78	25.80	0.74	24.94	0.69
	BiShrink [31]	29.18	0.89	28.15	0.86	27.32	0.83	26.72	0.81	26.08	0.78
	NeighShrinkSURE [32]	29.41	0.89	28.36	0.87	27.52	0.84	26.84	0.81	26.26	0.79
	OWT-SURELET [33]	29.47	0.89	28.44	0.86	27.63	0.84	26.97	0.81	26.41	0.79
	O-ITV [34]	28.82	0.87	28.32	0.86	27.25	0.83	25.86	0.77	24.30	0.70
	BM3D [35]	30.76	0.92	29.80	0.90	28.99	0.88	28.43	0.86	27.74	0.84
House	BF	30.77	0.88	30.32	0.86	29.81	0.84	29.26	0.82	28.68	0.80
	SAF	31.41	0.80	29.59	0.73	28.11	0.67	26.87	0.62	25.80	0.57
	Proposed	34.14	0.91	32.62	0.88	31.28	0.85	30.08	0.82	29.01	0.78
	Wiener [28]	31.57	0.89	30.33	0.86	29.34	0.82	28.33	0.78	27.49	0.75
	Kuwahara [29]	28.25	0.80	27.01	0.74	25.88	0.68	24.93	0.63	24.01	0.58
	NCD [30]	32.08	0.84	30.50	0.78	29.10	0.72	27.73	0.66	26.46	0.61
	BiShrink [31]	34.25	0.90	33.15	0.88	32.24	0.86	31.36	0.84	30.87	0.83
	NeighShrinkSURE [32]	34.90	0.91	33.75	0.89	32.81	0.87	32.00	0.86	31.28	0.84
	OWT-SURELET [33]	34.30	0.91	33.15	0.89	32.33	0.87	31.46	0.86	30.79	0.85
	O-ITV [34]	33.88	0.91	32.62	0.89	30.34	0.82	27.76	0.71	25.37	0.61
	BM3D [35]	36.47	0.93	35.60	0.92	34.67	0.91	34.03	0.90	33.30	0.88