7.2.2.4   Calibration Plate Extraction Parameters

Some of the parameters under Calibration Plate Extraction Parameters may be changed to improve the calibration results.

For calibration plates with hexagonally arranged marks:

• Smoothing (Sigma) should be set to a higher value if the image is blurry or contains strong noise.

For calibration plates with rectangularly arranged marks:

• Gap Tolerance should be set to a higher value if the plate is strongly tilted and
• Smoothing (Alpha) should be set to a smaller value if the image is blurry.
• Furthermore the Maximum Mark Diameter may be changed if the checkbox is activated.

For more information about these parameters, please refer to the reference manual entry of the HALCON operator find_calib_object.