Research Article
Single-Image Super-Resolution Using Panchromatic Gradient Prior and Variational Model
Table 4
SR results of different methods with magnification factor of 2.
| Images | Bicubic | SC | SCBP | Ours |
| Field | PSNR | 24.4504 | 24.5058 | 22.7932 | 26.8614 | RMSE | 15.2764 | 15.1792 | 18.4876 | 11.5736 | SSIM | 0.7493 | 0.7475 | 0.6872 | 0.8255 |
| Tree | PSNR | 23.5264 | 24.0390 | 22.1848 | 25.9000 | RMSE | 16.9911 | 16.0166 | 19.8289 | 12.9283 | SSIM | 0.7237 | 0.7248 | 0.6664 | 0.8139 |
| Beach | PSNR | 22.9976 | 22.9150 | 20.9018 | 24.7080 | RMSE | 18.0577 | 18.2300 | 22.9854 | 14.8300 | SSIM | 0.7427 | 0.7401 | 0.6821 | 0.8166 |
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