function Leadtools.Annotations.Core.AnnRedactionObject.restore()
When this method is called, the background behind this AnnRedactionObject must be restored back onto the original image. It is up to the implementer to perform this operation since this object has no concept of the original image. Therefore, in your application, you must subscribe to the Restored event and re-draw the image data stored in AnnRedactionObjectRestoredEventArgs.ImageData of the event data onto the original image.
If this AnnRedactionObject has not been realized, this method does nothing. You can determine if this AnnRedactionObject is realized using the CanRestore property.