Add shadow on right and bottom side of the layout

I want to add a light shadow on the right and bottom side of the layout.I tried using android:background="@android:drawable/dialog_holo_light_frame" but it adds a thick shadow on all four sides of the layout.What drawable i need to create and set as background?

<LinearLayout xmlns:android="http://ift.tt/nIICcg"

    android:layout_width="match_parent"
    android:layout_height="wrap_content"
    android:orientation="vertical"
    android:background="@android:drawable/dialog_holo_light_frame">
       <ImageView
                android:id="@+id/g"
                android:layout_width="wrap_content"
                android:layout_height="wrap_content"
                android:scaleType="centerCrop"
                android:layout_gravity="center"
                android:src="@drawable/logo_icon"
                android:visibility="visible"
                android:clickable="true" />
</LinearLayout>