Masked Regions

The Masked Region is used to define an area of the image that will undergo edge analysis. This region is used in conjunction with Caliper arrays for precise edge detection.

  Controls Description
1 Resizable Endpoint Boundary (x4) Defines the four corners of the rectangular region. Click on an end-point boundary to resize the region from one of its corners.
2 Mask

Defines the area of the image that will NOT undergo image analysis. The mask can be moved and resized within the region. A total of 99 masks may be added to a region. When a mask is added, it will be added to the beginning of the region (if no other masks have been added), or behind the previously added mask.

Note: Masks may not overlap. If they are configured to overlap, a 1 pixel buffer will automatically be inserted to prevent them from overlapping.
3 Scan Direction Indicator (x2) Defines which direction the masked region will scan for features.
4 Edge Detection Indicator Defines the area within the region where edge transitions will be detected; also enables adding new masks to the region.
5 Rotation Handle Allows the region to be rotated 360°.
6 Bend Handle Allows the rectangular region to be bent into an arc or annular shape.

By placing the mouse cursor over various parts of the region, it will automatically transform, enabling the following actions:

Mouse Icon Description
Allows you to drag the entire masked region anywhere within the image.
Allows you to scale the entire region either horizontally or vertically; also used to resize the mask.
Allows two separate actions, depending on where the mouse cursor is placed. When the mouse cursor is placed on the Rotation Handle, you can rotate the region 360° from its current orientation. When the mouse cursor is placed on the Bend Handle, you can reshape the region into an arc or annular shape for detecting circular edge features.
Allows you to drag the mask within the region.
Allows you to add or delete a mask from the region. When this icon appears, right-click the mouse to open a menu with two options: Add Mask or Delete Mask.