Research Article
Towards an Automatic Parameter-Tuning Framework for Cost Optimization on Video Encoding Cloud
Table 1
PSNR versus CRF (foreman).
| Foreman | crf = 20 | crf = 23 | crf = 26 | PSNR mean | Deviation (%) | PSNR mean | Deviation (%) | PSRN mean | Deviation (%) |
| B-frame | 40.38 | 0.51 | 38.60 | 0.09 | 36.88 | 0.33 | Ref | 40.45 | 0.79 | 38.73 | 1.08 | 37.03 | 1.21 | Subme | 40.05 | 2.6 | 38.25 | 3.01 | 36.49 | 3.26 | Trellis | 40.22 | 0.73 | 38.46 | 0.71 | 36.74 | 0.77 |
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