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Operational Reference
Genie_TS_Series GigE Vision Camera
Average bright pixel value
(bright gray but not white)
Maximum should not be
peak white unless there is a
“hot” pixel (i.e. 255 for 8-bit,
1023 for 10-bit)
Minimum should not be black
unless there is a “dead” pixel
Important:
In this example, the
average
pixel value for the frame is bright gray. Also note that sensors may
show a much higher maximum or a much lower minimum pixel value due to one or more "hot or dead pixels".
The sensor specification accounts for a small number of hot, stuck, or dead pixels (pixels that do not react to
light over the full dynamic range specified for that sensor).
Once the bright gray acquisition setup is done, note the camera position and lens iris position so as
to be able to repeat it during the calibration procedure.
Flat Field Correction Calibration Procedure
The following procedure uses the CamExpert Flat Field tool. Calibration is the process of taking two
reference images, one of a dark field – one of a bright field (not saturated), to generate correction
data for images captured by Genie. Each sensor pixel data is modified by the correction factor
generated by the calibration process, so that each pixel has an identical response to the same
illumination.
Start the Flat Field calibration tool via the CamExpert menu bar:
Pre-processing • Flat Field Correction • Calibration.
