噪声水平

滤波方法

PSNR/dB

SSIM

σ = 5

Hard threshold

24.3253

0.7528

Soft threshold

33.0377

0.9322

Proposed method

34.5776

0.9327

σ = 15

Hard threshold

24.1769

0.7476

Soft threshold

26.5836

0.7490

Proposed method

28.3664

0.8159

σ = 25

Hard threshold

23.9439

0.7402

Soft threshold

26.8980

0.8080

Proposed method

27.0750

0.8618