Nonlocal Mean Image Denoising Using Anisotropic Structure Tensor

Table 1

PSNR values for images denoised with the proposed algorithm, the PND, and the NLM. For each image, the three rows correspond to noise levels 𝜎=10, 25, and 50. Boldfaced numbers denote the highest values.

	Noisy image	Proposed algorithm	PND	NLM
	28.42	35.21	35.17	34.87	𝜎=10
House	19.74	30.43	30.96	29.89	𝜎=25
	14.77	26.65	26.56	25.45	𝜎=50
	28.29	34.89	35.07	34.66	𝜎=10
Coins	19.7	30.54	30.70	29.88	𝜎=25
	14.76	26.78	26.83	25.38	𝜎=50
	28.4	35.11	34.95	35.01	𝜎=10
Lena	19.6	30.87	30.39	30.12	𝜎=25
	14.46	27.68	26.41	25.68	𝜎=50
	27.78	30.95	31.9	30.62	𝜎=10
Cameraman	20	27.61	28.09	27.25	𝜎=25
	14.7	24.32	23.38	23.25	𝜎=50