AW00123402000 Features
Basler ace USB 3.0 213
8.11.3.2 Positioning of an Auto Function ROI Relative to the Image ROI
The size and position of an Auto Function ROI can be, but need not be, identical to the size and
position of the Image ROI. Note that the overlap between Auto Function ROI and Image ROI
determines whether and to what extent the auto function will control the related image property.
Only the pixel data from the areas of overlap will be used by the auto function to control the image
property of the entire image.
Different degrees of overlap are illustrated in Figure 92. The hatched areas in the figure indicate
areas of overlap.
If the Auto Function ROI is completely included in the Image ROI (see (a) in Figure 92), the
pixel data from the Auto Function ROI will be used to control the image property.
If the Image ROI is completely included in the Auto Function ROI (see (b) in Figure 92), only
the pixel data from the Image ROI will be used to control the image property.
If the Image ROI only partially overlaps the Auto Function ROI (see (c) in Figure 92), only the
pixel data from the area of partial overlap will be used to control the image property.
If the Auto Function ROI does not overlap the Image ROI (see (d) in Figure 92), the Auto
Function will not or only to a limited degree control the image property. For details, see the
sections below, describing the individual auto functions.
We strongly recommend completely including the Auto Function ROI within the
Image ROI, or, depending on your needs, choosing identical positions and sizes
for Auto Function ROI and Image ROI.
You can use auto functions when also using the reverse X feature. For information
about the behavior and roles of Auto Function ROI and Image ROI when also
using the reverse X feature, see the "Reverse X" section.
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