Image data flow
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Goldeye G/CL Technical Manual V4.2.0
Marking the defined ROI
It is possible to mark the defined ROI by dimming the area outside the ROI, so the
selected area stands out brighter. To do so, set the feature
AutoModeRegionDimOutside
to
On
.
Find detailed descriptions of the features controlling the automatic exposure and
the functionality associated with them in the Goldeye G/CL Features Reference on
the Allied Vision website.
Automatic exposure control
The exposure of the Goldeye G/CL can be adjusted automatically by applying the
relevant auto exposure settings. The adjustment is based on the present signal
values of pixels within the image.
By default, the automatic exposure control is switched off, however, it is possible to
have the automatic exposure control run in several ways:
•
Run it continuously.
•
Run it until the required target value is reached, then stop it.
Selecting an algorithm
To automatically determine the optimal exposure of the sensor, a few statistical
values need to be calculated first: a mean (average) value, minimum and maximum
values. These values are calculated with the help of the histogram of the last
captured image.
The camera provides two different behaviors to control auto exposure. Use the
settings of the
ExposureAutoAlg
feature to select the desired behavior.
Figure 69: Example for the effect of AutoModeRegionDimOutside. Left: without
dimming applied, right: with dimming applied to the outside area.
