Gray Value Calibration

• Cameras often do not have a linear response to incoming light
• This nonlinearity results in a reduced accuracy
• HALCON allows analyzing and then correcting these nonlinearities
• This gray calibration can be applied very easily
  • No calibration plate is necessary
  • No special illumination is required
  • Easy programming and integration into an application

application examples

:: The gray calibration is beneficial for all high accuracy methods and applications     Locating significant points for tracking and geometric measurement requires high accurary   Edge finding is still one of the most common measurement methods also benefits from the gray value calibration   Edge and line contour extraction as the basis for measurement of complex shapes requires highest quality image data which can be improved using the gray value calibration