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Table 5 PSNR of image denoising

From: An image denoising method based on BP neural network optimized by improved whale optimization algorithm

Denoising algorithm

Noise intensity

0.03

0.04

0.06

0.08

MF

21.20

20.00

18.91

17.86

NAF

22.11

21.12

20.25

19.41

WF

22.59

21.17

20.06

19.11

BP

25.90

24.40

21.95

20.61

WOA-BP

27.75

25.82

23.90

22.96

MSWOA-BP

28.32

26.77

25.11

24.18