It is possible to overlay a limited set of statistics directly in the image. This behavior can be configured in the VOI statistics in overlay section of the VOI configuration panel by checking the statistics of interest. Note that activating the Peak should be used with care, as for large VOIs it may incur visible calculation delays.
After enabling overlay statistics (illustrated below), the results are updated whenever a VOI is modified.
Note: Only the statistics of the VOI selected in the VOIs list is shown in the overlay to avoid cluttering of the image area.