Execute command on mouse click on image control wpf

There is a command property in wpf that I am trying to execute on an image click. I am basically changing the style of a scroller. I downloaded sample styles from here and after changing my style I end up with something like:

ok so let me explain. on the top there is an arrow pointing upwards on top of an image. I plan to get rid of the top arrow but the reason why I need it is because in the xaml it has a command that when clicked it scrolls upward. the code for that up arrow is:

<RepeatButton
          Style="{StaticResource ScrollBarButton}"
          Margin="0,15,0,0"
          VerticalAlignment="Top"
          Background="#FFFFFFFF"
          Grid.Row="0"                                                                        
          Command="{x:Static ScrollBar.LineUpCommand}"   <!-- This is the line that enables to scroll upwards when clicked -->
          theme:ScrollChrome.ScrollGlyph="UpArrow"
          RenderTransformOrigin="0.5, 0.5">
          <RepeatButton.RenderTransform>
          &开发者_JAVA技巧lt;ScaleTransform ScaleX="4" ScaleY="2"/>
          </RepeatButton.RenderTransform>    
</RepeatButton>

In short I am interested in the following property:

Command="{x:Static ScrollBar.LineUpCommand}"

It would be nice if I could get rid of the top arrow and place that command in the image instead. The problem is that the image control does not have the property command. I know I can make the alpha of the top arrow equal to 0 and make it appear like there is only an image but I am curios of understanding how does this work and moreover I would like to add more functionality such as changing the image appearance on mouse enter etc..

Create a button with control template just having an image and bind to the Command of the button. More on this can be found here: Attach ICommand in WPF UserControl

Or try using eventtocommand available in mvvm light tookit