Camera raw image with overlay. Its number value is the time stamp of the image it has been created from. Commands drawing into this image do not alter the time stamp. Commands modifying overlays are ClearOverlay, CollectPattern , VisualizePatternBuffer, EstimatePatternPose .
A three channel RGB image of unsigned 8bit values containing the current camera image with overlays.
The image will be a color image, even if the cameras sensor is monochrome.