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Table 4 DSSIM values for various Rician noise levels

From: Rician nonlocal means denoising for MR images using nonparametric principal component analysis

 

σ= 10

σ = 20

σ = 30

σ = 40

Brain image

    

NLM

287.2

88.4

35.12

17.17

PCA-NLM

288.6

85.1

38.21

18.75

NPCA-NLM

302.7

93.2

38.66

18.81

Body image

    

NLM

304.0

59.5

22.35

11.55

PCA-NLM

303.9

60.2

22.96

11.58

NPCA-NLM

313.9

59.5

23.01

11.84

Knee image

    

NLM

236.7

98.8

44.64

22.59

PCA-NLM

255.9

103.3

47.18

24.97

NPCA-NLM

266.4

105.4

46.83

25.20