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 |