7.2.3.1   Calibration Status

This box displays whether the calibration was successful, and the Mean Error in pixels.

If you either delete calibration images, change Calibration Plate Extraction Parameters or Camera Parameters after having calibrated, the former calibration data is not valid any more. Therefore, the Status will display that no calibration data is available. To continue working with your changed camera parameters, calibration parameters or images, just click Calibrate again on the Calibration tab.

Mean Error Designates the average error in pixels during the calibration process. When the system has been calibrated, the ideal centers of the calibration marks are calculated and compared to the real mark centers. Mean Error is the deviation value between the ideal and the real mark centers. A value of 0.1 and lower can be regarded as a good result. Possible calibration errors are described in the tables about quality issues under Quality Issues.