Image Denoising Based on Dilated Singularity Prior

Table 1

PSNR Comparison of HMT [22], BLS-GSM [21], nonlocal [3], BM3D [10], and the proposed method with simulated gaussian noisy image.

Image	Standard deviation of noise	HMT; [22]	BLS-GSM; [21]	Nonlocal; [3]	BM3D; [10]	Proposed method
Lena; (512×512)	10	34.08	35.23	35.65	35.91	35.51
	15	31.89	33.50	34.12	34.26	33.85
	20	30.41	32.26	32.82	33.05	32.66
	25	29.36	31.30	31.89	32.09	31.71
Barbara; (512×512)	10	31.62	33.13	34.06	34.93	33.74
	15	29.28	30.76	31.78	33.05	31.67
	20	27.81	29.10	30.41	31.72	30.16
	25	26.61	27.80	29.29	30.64	29.00