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Table 2 Metrics obtained when applying denoising methods to the image with middle-level speckle noise

From: Multiresolution generalized N dimension PCA for ultrasound image denoising

Denoising methods

MSE

SNR

PSNR

SSIM

The source image

3115.3

47.97

13.20

0.2624

Bilateral filter

574.56

55.31

20.54

0.6646

KSVD

2136.6

49.60

14.83

0.6086

NLM

1495.00

51.15

16.38

0.6447

Fourier ideal filtering

602.14

55.10

20.33

0.4763

Fourier Butterworth

623.03

54.96

20.19

0.5384

Median filter

649.68

54.77

20.00

0.5296

Wavelet filter

1710.9

50.57

15.80

0.3978

BM3DPCA

575.26

55.30

20.53

0.6883

PGPCA

704.16

54.42

19.65

0.7377

LPGPCA

770.55

54.03

19.26

0.7472

MR-GND-PCA

532.83

55.53

20.86

0.7738