Calibration from Image

Applies the calibration information saved in an image to the current image.

Pixel Calibration Tab

Defines physical dimensions of the area of a pixel in the image and the correspondence between pixels and real-world units. The following controls are available on the Pixel Calibration tab.

• Step Name—Name to give the step.
• Load Calibration from Image File—Selects the image file containing the calibration information to load.
• Pixel Type—Indicates the pixel type of the image you are using for calibration.
• Correspondence Image - Real World—Indicates the real-world coordinates and units of the points used for calibration on the image you are loading from file.
• Unit—Unit of measurement.

Calibration Tab

Defines a reference coordinate system in the image. The following controls are available on the Calibration tab.

• Axis Origin—X- and y-coordinates of the origin of the coordinate system, in pixels.
• Axis Reference—Specifies the direction of the y-axis of the coordinate system with reference to the x-axis. The vertical axis direction can be either indirect (default) or direct.
• Angle Relative to Horizontal—Specifies the angle of the x-axis of the coordinate system with respect to the horizontal.
• Corrected Image Scaling—Specifies how to scale the corrected image when you apply the Image Correction function. Two scaling mode options are available: Scale to Fit and Scale to Preserve Area. With the Scale to Fit option, the corrected image is scaled to fit in an image the same size as the original image. With the Scale to Preserve Area option, the corrected image is scaled such that features in the image retain the same area as they did in the original image. Images that are scaled to preserve the area are usually larger than the original image.