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. 2020 May 16;20(10):2838. doi: 10.3390/s20102838

Table 8.

Parameters used to generate distortions of the retinal images for agreement grade evaluation.

Distortion Effect. Factors Range
Blurriness Standard deviation σ in 2D Gaussian Filter [0, 31.5] with step 3.5
Luminance Change of luminance ±δ [0, 25] with step 5.0
Contrast Standard deviation in resultant image [0.6, 2.8] with step 0.2