Viewer Calibration    

Calibration refers to the process of determining the relation between the camera image and the actual dimension.

It also includes the process of adjustment ie setting the output or indication on a measurement instrument to agree with value of the applied standard, within a specified accuracy.

To set the calibration

  1. Either display an object in the View area, or open an existing image with a known unit of measure. For example, you can calibrate using a ruler.
  2. Right-click on the Calxx button.
    (NOTE: You can customize the name since this reflect the calibration name) and bring up the calibration wizard.

Menu

  1. Reset will reset the calibration to pixels.
  2. Wizard bring up the wizard described above.
  3. Adjust allows you to tweak the calibration.
  4. Edit Edit/View the calibraiton data.
  5. Calibration Selection Options
  6. the menu is brought up by right clicking on the calibration button.





Using the Calibration Wizard



  1. You can define a line or circle by clicking on two or more points in the View area.
  2. Click once on the starting point and once on the ending point of a line. Or click on multiple points that define the line
  3. You can define a circle by clicking on muliple point points in the View area.

  4. Enter the desired changes. See below for descriptions of the fields.
  5. Click the Apply button to finish the calibration, or the Cancel button to cancel the calibration.
  6. (NOTE) Click the Save the Workspace icon in the upper right corner of the Main Window to maintain the calibration for future sessions.

Using the Tweak Wizard



  1. use the arrow key to adjust the location
  2. toggle between shift and scale
  3. the toolbar grid axis button can be used to show the new calibraiton as a grid or lines

Testing Procedure



To test from the Viewer Control Toolbar select the Measure Distance Tool from the Measurement Toolbar.

Pick on the two points that you used to set your calibration and the measurement distance will be shown using the new calibration value: