Noise parameters

(Variance and Density)

Mean filter

Wiener filter

Wavelet transform

Improved Method

Before denoising

(0.02%, 2%)

22.9239

20.6765

21.5680

23.2703

16.5769

(0.015%, 1.5%)

23.5659

21.6196

22.6526

24.2344

17.7414

(0.01%, 1%)

24.3129

23.1452

24.2732

25.6937

19.3965

(0.005%, 0.5%)

27.1046

25.4496

26.7637

28.0244

22.2524