Noise parameters

(Variance and Density)

Mean filter

Wiener filter

Wavelet transform

Improved Method

Before denoising

(0.02%, 2%)

327.0046

578.4908

457.4564

310.4015

1416.1191

(0.015%, 1.5%)

284.8747

448.6212

347.3855

241.4228

1071.9720

(0.01%, 1%)

240.5693

327.1221

242.7492

176.2127

760.1754

(0.005%, 0.5%)

202.2810

177.9278

135.9694

102.1227

383.7669