Table 2.
Grey scale values and range of grey scale values (mean (SD))
| Grey scale values over whole image width | Range of grey scale values | ||
| Fluorescence standard | Background noise | ||
| HRA | 169.68 (43.96) | 11.21 (1.33) | 158.46 (44.01) |
| Rodenstock cSLO | 60.89 (12.76) | 25.45 (0.65) | 35.43 (12.82) |
| Zeiss cSLO | 159.19 (22.34) | 54.02 (5.58) | 105.17 (19.62) |