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Camera Performance and Features
Linea Lite GigE Series Camera
Performing an FFC Setup via Sapera CamExpert
The Sapera LT CamExpert tool provides an easy GUI based method for a user to perform a Flat
Field Calibration. The process first requires the user to plan acquisitions in dark and bright
conditions, followed by the FFC process itself. These steps are detailed below.
Set up Dark and Bright Acquisitions with the Histogram Tool
Verify the camera’s acquisition with a live grab and prepare to grab a flat light gray image required
for calibration. Ideally, a controlled diffused light source aimed directly at the lens should be used
or a non-glossy paper with the lens slightly out of focus (or evenly lit wall). Note the lens iris
position for a bright but not saturated image.
Verify a Dark Acquisition
Close the camera lens iris and cover the lens with the lens cap.
Using CamExpert, click Grab and then Statistics.
Figure 42: CamExpert – Grab & Statistics Buttons
In the Statistics dialog, use the Selected view drop-down list to select Histogram.
Figure 43: CamExpert Statistics Dialog – Selected View
The following figure shows a typical histogram for a camera grabbing a dark image.