Research Article
Improved Multiscale Learning Dictionary Image Denoising Algorithm in Curved Wave Domain
Table 2
Peak signal-to-noise ratio–structural similarity of simulation results.
| | | PSNR (dB)-SSIM | K-SVD | Bilateral filtering | Nonlocal mean filtering | Curvilinear transform algorithm | BM3D | Literature [13] | Literature [14] | Literature [15] | Methods in this paper |
| Bird | 10 | 32.35–0.82 | 33.15–0.83 | 33.45–0.85 | 33.63–0.84 | 34.79–0.89 | 34.21–0.85 | 34.35–0.87 | 34.56–0.88 | 34.75–0.89 | 20 | 28.42–0.75 | 29.33–0.77 | 29.54–0.78 | 29.89–0.80 | 31.16–0.83 | 30.13–0.79 | 30.52–0.81 | 30.66–0.81 | 31.15–0.82 | 30 | 25.32–0.70 | 26.54–0.72 | 27.35–0.74 | 27.88–0.75 | 29.13–0.79 | 28.12–0.76 | 28.45–0.76 | 28.89–0.77 | 29.11–0.78 | 40 | 24.31–0.67 | 26.11–0.69 | 26.57–0.70 | 26.62–0.71 | 27.68–0.74 | 26.87–0.71 | 27.11–0.71 | 27.34–0.72 | 27.69–0.74 | 50 | 23.76–0.62 | 24.36–0.64 | 25.21–0.65 | 25.54–0.66 | 26.88–0.71 | 25.98–0.67 | 26.23–0.68 | 26.55–0.69 | 26.87–0.70 |
| Boat | 10 | 32.22–0.845 | 32.32–0.854 | 32.78–0.891 | 33.55–0.886 | 33.67–0.892 | 34.18–0.911 | 34.21–0.908 | 34.16–0.958 | 34.42–0.963 | 20 | 29.12–0.697 | 29.32–0.732 | 29.64–0.798 | 30.11–0.815 | 30.19–0.819 | 30.38–0.842 | 30.33–0.838 | 30.53–0.928 | 31.18–0.935 | 30 | 28.05–0.622 | 28.21–0.652 | 28.32–0.687 | 28.21–0.701 | 28.34–0.711 | 28.64–0.732 | 28.65–0.729 | 28.57–0.890 | 28.88–0.892 | 40 | 26.11–0.512 | 26.34–0.547 | 26.32–0.612 | 26.65–0.0.607 | 26.89–0.655 | 27.18–0.672 | 27.11–0.668 | 27.38–0.673 | 27.52–0.680 | 50 | 24.12–0.489 | 24.56–0.531 | 25.12–0.559 | 25.32–0.568 | 25.53–0.611 | 26.12–0.631 | 26.06–0.629 | 26.33–0.655 | 26.41–0.661 |
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