BitmapImage bi = new BitmapImage();
bi.UriSource = new Uri(@"d:\111\1.jpg");
Image im = new Image();
im.Source = bi;
Canvas1.Children.Add(im);

<Canvas x:Name="Canvas1" Height="184" Width="376" Canvas.Left="0" Canvas.Top="0">
    <Image Source="d:\111\1.jpg"></Image>
</Canvas>

<UserControl x:Class="SilverlightApplication4.MainPage"
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="400">

    
        <Canvas>
        <Image Source="http://armenianroots.ru/userphotos/tree/small/nophoto.jpg"></Image>
        </Canvas>
    
</UserControl>

<UserControl 
    x:Class="GraphLight.Demo.MainPage" 
        
    xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
    xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
    xmlns:d="http://schemas.microsoft.com/expression/blend/2008"
    xmlns:mc="http://schemas.openxmlformats.org/markup-compatibility/2006"
    mc:Ignorable="d"
    d:DesignHeight="300" d:DesignWidth="500">

    <Canvas x:Name="LayoutRoot" MinHeight="300" MinWidth="500" DataContext="{Binding}" >
        <Canvas x:Name="FamilyTree" Background="Transparent" MouseLeftButtonDown="FamilyTree_MouseLeftButtonDown" MouseLeftButtonUp="FamilyTree_MouseLeftButtonUp" MouseMove="FamilyTree_MouseMove" Height="184" Width="376">
             <Image Source="http://armenianroots.ru/userphotos/tree/small/nophoto.jpg"></Image>
        </Canvas>
            
    </Canvas>
</UserControl>

<?xml version="1.0" encoding="utf-8" ?>
<access-policy>
<cross-domain-access>
<policy>
<allow-from http-request-headers="*">
<domain uri="*" />
</allow-from> <grant-to>
<resource path="/" include-subpaths="true" />
</grant-to>
</policy>
</cross-domain-access>
</access-policy>