Alkeria NECTA Series - Binning (Monochrome Models Only)

8. Capturing Images 89
Example Code 8.3 | ROI conguring example
// Ensures that ROI start position plus size does not exceed max sensor area
device.ImageStartX = 0;
// Set ROI size
device.ImageSizeX = Math.Min(device.MaxImageSizeX, 1536);
// Set ROI starting position
device.ImageStartX = 16;
// Set 1024 lines for each frame assuring it does not exceed the maximum allowed SizeY
device.ImageSizeY = Math.Min(device.MaxImageSizeY, 1024);
To avoid errors, the sum of ImageStartX and ImageSizeX must not exceed MaxImageSizeX.
Note
It is possible to set ROI parameters only when the camera is not acquiring.
Note
Changing ROI parameters involves automatic recomputing of the packet size
boundaries (see Section 8.9.4).
8.4 BINNING (MONOCHROME MODELS ONLY)
NECTA cameras using monochrome sensors are able to digitally sum two or more adjacent pixels into
one pixel. Binning is a digital aggregation that is applied after the analog to digital conversion. Refer to
Section 2.2.1 for further information about available binning modes.
The horizontal binning mode combines the values of adjacent pixels on the same line (see Figure 8.3 and
Figure 8.6) and the horizontal lenght of the acquired image is halved.
For example, starting from the ROI position depicted in Figure 8.2, horizontal binning would produce
the following values:
MaxImageSizeX
Bin
=
MaxImageSizeX
No−Bin
2
(8.8)
SizeX
Bin
=
SizeX
No−Bin
2
= 768 (8.9)
StartX
Bin
=
StartX
No−Bin
2
= 8 (8.10)
All values will be truncated to their integer part.