On Baumer EXG cameras the correction factor γ is adjustable from 0.001 to 2.
The values of the calculated intensities are entered into the Look-Up-Table (see 4.1.4.).
Thereby previously existing values within the LUT will be overwritten.
If the LUT feature is disabled on the software side, the gamma correction
feature also is disabled.
4.1.7. PartialScan/AreaofInterest(AOI)
With the "Partial Scan" function it is possible to predene a so-called Area / Region of
Interest (AOI / ROI). This ROI is an area of pixels of the sensor. On image acquisition,
only the information of these pixels is sent to the PC. Therefore all the lines of the sensor
need not be read out, which decreases the readout time (t
readout
). This increases the frame
rate.
This function is employed, when only a region of the eld of view is of interest. It is coupled
to a reduction in resolution.
The ROI is specied by four values:
▪ Offset X - x-coordinate of the rst relevant pixel
▪ Offset Y - y-coordinate of the rst relevant pixel
▪ Size X - horizontal size of the ROI
▪ Size Y - vertical size of the ROI