C# 使图像适合边框背景

我可以知道如何将图像与设计的边框相匹配吗

下面是我已经完成的代码

 <Border Grid.Row="1" BorderThickness="1" BorderBrush="LightGreen" Margin="20" CornerRadius="30">
            <Border.Background>
                <LinearGradientBrush EndPoint="0.504,1.5" StartPoint="0.504,0.03">
                    <GradientStop Color="#F9FFF0" Offset="0"/>
                    <GradientStop Color="#F3FFE2" Offset="0.567"/>
                </LinearGradientBrush>
            </Border.Background>
            <Image Source="/LBKIOSK;component/Resources/Images/Background/klhoho.jpg"  Opacity="0.3" Stretch="UniformToFill"/>

            <Border.Effect>
                <DropShadowEffect ShadowDepth="5" Color="#599204"></DropShadowEffect>
            </Border.Effect>
        </Border>

但输出显示如下，图像不适合在边框内

可以将属性设置为类似：

<Border Grid.Row="1" BorderThickness="1" BorderBrush="LightGreen" Margin="20" CornerRadius="30">
     <Border.Background>
          <ImageBrush Stretch="UniformToFill" ImageSource="/LBKIOSK;component/Resources/Images/Background/klhoho.jpg"/>
     </Border.Background>
     <Border.Effect>
          <DropShadowEffect ShadowDepth="5" Color="#599204"></DropShadowEffect>
     </Border.Effect>
</Border>