xml=====

<Window x:Class="OpenCvWpfApp.MainWindow"
        xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
        xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
        Title="OpenCV Image Processing" Height="800" Width="600"
        Background="#FFD3D3D3">
    
    <Window.Resources>
        <ContextMenu x:Key="ContourContextMenu">
            <Separator />
        </ContextMenu>
    </Window.Resources>


    <Grid Margin="0,0,-8,0">
        <ScrollViewer x:Name="scrollViewer" HorizontalScrollBarVisibility="Auto" VerticalScrollBarVisibility="Auto">
            <Canvas Name="drawingCanvas" 
                    Background="Transparent"
                    MouseWheel="DrawingCanvas_MouseWheel"
                    MouseEnter="DrawingCanvas_MouseEnter"  
                    MouseLeave="DrawingCanvas_MouseLeave"
                    RenderTransformOrigin="0.5,0.5">

                
                
            </Canvas>
        </ScrollViewer>



        <StackPanel VerticalAlignment="Bottom" Orientation="Vertical" Margin="10" HorizontalAlignment="Center">
            <TextBlock Text="Epsilon Value:"
               HorizontalAlignment="Center" 
               VerticalAlignment="Bottom" Height="20" />
            <Slider x:Name="epsilonSlider" 
            Minimum="0.001" 
            Maximum="0.1" 
            Value="0.01" 
            TickFrequency="0.001"
            Width="332"
            ValueChanged="epsilonSlider_ValueChanged" 
            Height="19" />
        </StackPanel>
    </Grid>
</Window>