Calibration Dialog Box

An image is calibrated using the Calibration dialog box.

To open the Calibration dialog box

From the Image menu, choose Calibrate or on the Image toolbar, click the button.


Calibration dialog box

Calibration dialog box buttons

Button Description

Define Grid
Creates a set of calibration pairs placed in the nodes of rectangular grid.

Add Pair
Creates a calibration pair using the dialog box.

Modify Pair
Allows changing the locations of measured and real points and the type of selected calibration pair.

Reset Pair
Places the measured points to real point positions for the selected calibration pairs.

Delete Pair
Removes all selected calibration pairs from the list and appropriate points from the drawing.

View Previous
Pans the drawing to display the previous calibration pair.

Zoom To
Zooms the drawing to display calibration pairs selected.

View Next
Pans the drawing to display the next calibration pair.

Estimate
Estimates calibration accuracy.

Calibration method

Shows the method that will be used for calibrating.

Mean error

Displays the root-mean-square deviation for all calibration pairs.

Max error

Displays the maximum deviation for all calibration pairs.

Min error

Displays the minimum deviation for all calibration pairs.

Calibration pair list

Displays information about all calibration pairs in the following format:

Point Name Displays the calibration pair names. To select a calibration pair, click its name.
Type Displays the calibration pair types Control, Grid, Check, or Unused.
Xreal Displays the X coordinate of real points.
Yreal Displays the Y coordinate of real points.
Xmeas Displays the X coordinate of measured points.
Ymeas Displays the Y coordinate of measured points.
Xadj Displays the X coordinate of estimated points.
Yadj Displays the Y coordinate of estimated points.
Xerr Displays the X projections of distances between real and estimated points.
Yerr Displays the Y projections of distances between real and estimated points.

Sort any column by clicking buttons with column names. The first click on the button sorts the list in ascending order, the second click, in descending order.

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