Table 1 Comparison of processing times for denoising a single precision 512 × 512 image
From: Discrete shearlet transform on GPU with applications in anomaly detection and denoising
Step | 4-core CPU | GTX 690 GPU | ||
|---|---|---|---|---|
Time (s) | % time | Time (ms) | % time | |
Laplacian pyramid | 2.787 | 31.6 | 18.282 | 47.3 |
Directional filters | 4.386 | 49.7 | 18.350 | 47.5 |
Hard threshold | 0.375 | 4.2 | 1.967 | 5.1 |
Other | 1.281 | 14.5 | 0.063 | 0.2 |
Total time | 8.829 s | 38.662 ms | ||