How display a tooltip on a selected area of an image

[jrosh]

I am working on a wpf project which there is a scrolviwer that holds an image

   <ScrollViewer Grid.Row="2" x:Name="Image" HorizontalScrollBarVisibility="Hidden" VerticalScrollBarVisibility="Hidden" >



    I want to add tooltips on the image. Not a single tool tip but several relevant to the area. 
    How can i desplay several tool tips on a single image.

    thankx in advance