Software Auto Exposure Page

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The controls have ToolTips, so that wording won’t be duplicated here.

The “Scene Brightness” is a relative calculated as such;

e = gain * exposure_time_seconds * 100
y = mean pixel value as a value from 0 to 4095
a = user-defined coefficient (default = 1.0)
b = user-defined offset (default = 0.0)

SB = a * log2(y / e) + b

The parameters can be set with
STATE= HDR AE Scene Brightness Coeff, 1.0
STATE= HDR AE Scene Brightness Offset, 0.0

A method of setting the value to zero for no light is to cover the lens in complete darkness and use the displayed value as the offset.