Image

灰度图像

<Page xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
  xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml">

  <Page.Resources>

    
    <BitmapImage x:Key="masterImage" DecodePixelWidth="200" 
     UriSource="C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Forest.jpg"/>

    
        <FormatConvertedBitmap x:Key="convertFormatImage" 
                               Source="{StaticResource masterImage}" 
                               DestinationFormat="Gray32Float" />
      
  Page.Resources>
  
  <StackPanel>
    
    
    <Image Width="200" Source="{StaticResource convertFormatImage}" />
  StackPanel>
Page>

裁剪图像

<Page.Resources>
   
   <BitmapImage x:Key="masterImage" UriSource="/sampleImages/gecko.jpg" />
   <CroppedBitmap x:Key="croppedImage" 
      Source="{StaticResource masterImage}" SourceRect="30 20 105 50"/>
Page.Resources>


<Image Width="200" Source="{StaticResource croppedImage}" 
   Margin="5" Grid.Column="0" Grid.Row="1" />

CroppedBitmap还可以用作另一个源CroppedBitmap，链接裁剪。 请注意，SourceRect使用相对于裁剪位图并不是初始的图像的源的值。

<Image Width="200" Grid.Column="0" Grid.Row="3" Margin="5">
   <Image.Source>
      <CroppedBitmap Source="{StaticResource croppedImage}" 
         SourceRect="30 0 75 50"/>
   Image.Source>
Image>

旋转图像

<Image Width="150" Margin="5" Grid.Column="0" Grid.Row="1">
   <Image.Source>
     <BitmapImage UriSource="/sampleImages/watermelon.jpg" Rotation="Rotate90" />
   Image.Source>
Image>

变换

    <BitmapImage x:Key="masterImage" DecodePixelWidth="200" 
     UriSource="C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Forest.jpg"/>

    
    <TransformedBitmap x:Key="rotatedImage" Source="{StaticResource masterImage}">
      <TransformedBitmap.Transform>
        <RotateTransform Angle="90" />
      TransformedBitmap.Transform>
    TransformedBitmap>

掩码

圆角图片

<Grid>
        <Border  Name="myBorder" CornerRadius="40" Background="White"/>
        <Image Source="D:\Pictures\Animals\041.jpg">
            <Image.OpacityMask>
                <VisualBrush Visual="{Binding ElementName=myBorder}"/>
            Image.OpacityMask>
        Image>
    Grid>

注意Border的Background需要设置，因为OpacityMask属性仅使用 alpha 通道值为提供的 Brush 

 或者使用clip

<Image Source="D:\Pictures\Animals\041.jpg" Width="200" Height="150">
            <Image.Clip>
                <EllipseGeometry RadiusX="100" RadiusY="75" Center="100,75"/>
            Image.Clip>
        Image>

BitmapFrame用于存储图像格式的实际位图数据。 演示如何BitmapFrame从 创建BitmapSource，然后添加到 TIFF 映像。

BitmapSource image5 = BitmapSource.Create(
    width,
    height,
    96,
    96,
    PixelFormats.Indexed1,
    BitmapPalettes.WebPalette,
    pixels,
    stride);

FileStream stream5 = new FileStream("palette.tif", FileMode.Create);
TiffBitmapEncoder encoder5 = new TiffBitmapEncoder();
encoder5.Frames.Add(BitmapFrame.Create(image5));
encoder5.Save(stream5);

 BitmapImage是专为加载BitmapSource而可扩展应用程序标记语言 (XAML)优化Source的专用函数，是作为Image控件显示图像的简便方法。

// Create Image Element
Image myImage = new Image();
myImage.Width = 200;

// Create source
BitmapImage myBitmapImage = new BitmapImage();

// BitmapImage.UriSource must be in a BeginInit/EndInit block
myBitmapImage.BeginInit();
myBitmapImage.UriSource = new Uri(@"C:\Documents and Settings\All Users\Documents\My Pictures\Sample Pictures\Water Lilies.jpg");

// To save significant application memory, set the DecodePixelWidth or
// DecodePixelHeight of the BitmapImage value of the image source to the desired
// height or width of the rendered image. If you don't do this, the application will
// cache the image as though it were rendered as its normal size rather then just
// the size that is displayed.
// Note: In order to preserve aspect ratio, set DecodePixelWidth
// or DecodePixelHeight but not both.
myBitmapImage.DecodePixelWidth = 200;
myBitmapImage.EndInit();
//set image source
myImage.Source = myBitmapImage;