Table 1.
The average peak signal-to-noise ratio (PSNR), signal-to-noise ratio (SNR), and mean squared error (MSE) of the cryo-EM images with or without EMAN2 [29] intensity adjustment, according to different scaling factors.
| Intensity Adjustment Scaling Factor | PSNR | SNR |
|---|---|---|
| Original Image (without Adjustment) | 28.06118 | 6.99260 dB |
| Scaling Factor = 10 | 27.55033 | 20.00023 dB |
| Scaling Factor = 5 | 28.06118 | 13.98521 dB |
| Scaling Factor = 4 | 28.34026 | 12.05305 dB |
| Scaling Factor = 3 | 28.84182 | 9.59165 dB |
| Scaling Factor = 2 | 29.91141 | 6.43044 dB |
| Scaling Factor = 1 | 32.61282 | 2.87674 dB |
| Scaling Factor = 0.1 | 44.37584 | 0.16536 dB |
| Scaling Factor = 0.5 | 35.81839 | 1.26105 dB |
| Scaling Factor = 0.25 | 39.23404 | 0.55222 dB |
| Scaling Factor = Sane | 29.26647 | 8.09887 dB |