Enough percentage (difference percentage)
During comparison of images an enough percentage is required.
This is a float value between 0.0 and 1.0 where 0.0 = 0%, 0.01 = 1% etc.
Recommended value is between 0.05 - 0.15 for MAE metric with 8px normalized sample. Default is 0.05 (5%).
Note that for each used metric the comparing method will report different values. For bigger normalized sample you should increase this value.