User`s manual
Linea 2K, 4K, 8K and 16K Camera User's Manual  PRELIMINARY    83 
Teledyne DALSA    03-032-20206-01 
  Calibration is easily performed using the ‗cpa‘ command.  
  The cpa command has 3 parameters. 
o  The first parameter is a selection between: 
  ‗0‘ – Per pixel FFC calibration 
  ‗1‘ – A low pass FFC calibration  
o  We recommend that the second option is used to correct for any image non uniformity 
due to the lens and setup. 
o  The second parameter is the number of lines you want to average over. Use a value of 
4096 to achieve the best average. 
o  The third parameter is the 12-bit target value you want to achieve after calibration. 
  The cpa command takes several seconds to complete. The slower the line rate, the longer it will 
take. 
  On completion of the ‗cpa‘ command, you should see an image from the camera that is flat field 
corrected with the lens at the target level you set. 
You are now ready to evaluate the image quality of the Linea camera under your operating conditions. 










