Research Article
Magnetic Resonance Image Denoising Algorithm Based on Cartoon, Texture, and Residual Parts
Table 5
Average PSNR values of denoising the cartoon, texture, and residual parts in order (W: Wiener filter, H: hard threshold, and S: soft threshold).
| Noise variance | 0.01 | 0.03 | 0.05 | 0.07 | 0.09 |
| SHW | 29.36 | 25.05 | 23.47 | 21.67 | 20.99 | SWH | 28.54 | 23.60 | 21.93 | 20.25 | 19.67 | HSW | 24.05 | 23.10 | 18.55 | 19.96 | 16.71 | HWS | 24.50 | 22.33 | 20.96 | 19.92 | 19.21 | WSH | 28.02 | 25.26 | 19.19 | 20.64 | 17.00 | WHS (proposed) | 29.71 | 25.85 | 23.69 | 22.16 | 20.99 | Max | 29.71 | 25.85 | 23.69 | 22.16 | 20.99 |
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