Orthogonal image overlay is used to display a smaller localizer image as an overlay to serve as position reference, without interfering with the viewing area. The user can overlay an orthogonal image with hash marks on printed images. Orthogonal image overlays also appear on key images when displayed in the viewer, but not when the key image is rendered as a JPEG image on the report page from the browser. The user can also specify which overlay image to use.
The orthogonal image overlay setup is controlled under Settings/Customize Settings/View. Under Orthogonal Overlay, set the size and default location of the overlay image.
To apply orthogonal image overlays to an image frame, follow these steps:
Select Show Scout Overlay from the View menu.
Drag the image you want to display as the orthogonal image into the lower right or left corner of the image frame. When positioned over the appropriate area, the image drag cursor changes to indicate the image will become an orthogonal image overlay, as opposed to dropping the image into the image frame.
To move or remove the orthogonal image overlay from an image frame, click on it and drag it to the desired location, or back into the thumbnail panel.