LEADTOOLS WPF and Silverlight (Leadtools.Windows.Media assembly) Send comments on this topic. | Back to Introduction - All Topics | Help Version 17.0.3.30
RasterImageConverter Class
See Also  Members  
Leadtools.Windows.Media Namespace : RasterImageConverter Class



Converts a LEADTOOLS Leadtools.RasterImage to and from Windows Presentation Foundation (WPF) and Silverlight image objects. Supported in Silverlight, Windows Phone 7

Object Model

RasterImageConverter Class

Syntax

Visual Basic (Declaration) 
Public MustInherit NotInheritable Class RasterImageConverter 
Visual Basic (Usage)Copy Code
Dim instance As RasterImageConverter
C# 
public static class RasterImageConverter 
C++/CLI 
public ref class RasterImageConverter abstract sealed 

Example

Visual BasicCopy Code
Public Sub RasterImageConverterExample()
      Dim srcFileName As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp")
      Dim destFileName1 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1.jpg")
      Dim destFileName2 As String = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WPfFlipped.jpg")

      ' Use LEADTOOLS to convert the source image to a format that can be loaded with WPF
      Using codecs As New RasterCodecs()
         codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, Nothing)
      End Using

      ' Load the source image using WPF
      Dim bitmap As New BitmapImage()
      bitmap.BeginInit()
      bitmap.UriSource = New Uri(destFileName1, UriKind.Absolute)
      bitmap.EndInit()

      Console.WriteLine("Source WPF image is loaded, pixel format is {0}", bitmap.Format)

      ' Convert the image to LEADTOOLS RasterImage object
      Dim source As BitmapSource
      Using raster As RasterImage = RasterImageConverter.ConvertFromSource(bitmap, ConvertFromSourceOptions.None)
         Console.WriteLine("Converted to RasterImage, bits/pixel is {0} and order is {1}", raster.BitsPerPixel, raster.Order)

         ' Perform image processing on the raster image using LEADTOOLS
         Dim cmd As New FlipCommand(False)
         cmd.Run(raster)

         ' Convert the image back to WPF using default options
         source = DirectCast(RasterImageConverter.ConvertToSource(raster, ConvertToSourceOptions.None), BitmapSource)
      End Using

      Console.WriteLine("Converted back WPF, pixel format is {0}", source.Format)

      ' Save the image using WPF
      Using fs As FileStream = File.Create(destFileName2)
         Dim encoder As New JpegBitmapEncoder()
         encoder.QualityLevel = 30
         encoder.Frames.Add(BitmapFrame.Create(source))
         encoder.Save(fs)
      End Using
   End Sub

Public NotInheritable Class LEAD_VARS
   Public Const ImagesDir As String = "C:\Users\Public\Documents\LEADTOOLS Images"
End Class
C#Copy Code
public void RasterImageConverterExample()
   {
      string srcFileName = Path.Combine(LEAD_VARS.ImagesDir, "Image1.cmp");
      string destFileName1 = Path.Combine(LEAD_VARS.ImagesDir,"Image1.jpg");
      string destFileName2 = Path.Combine(LEAD_VARS.ImagesDir, "Image1_WPfFlipped.jpg");

      // Use LEADTOOLS to convert the source image to a format that can be loaded with WPF
      using(RasterCodecs codecs = new RasterCodecs())
      {
         codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, null);
      }

      // Load the source image using WPF
      BitmapImage bitmap = new BitmapImage();
      bitmap.BeginInit();
      bitmap.UriSource = new Uri(destFileName1, UriKind.Absolute);
      bitmap.EndInit();

      Console.WriteLine("Source WPF image is loaded, pixel format is {0}", bitmap.Format);

      // Convert the image to LEADTOOLS RasterImage object
      BitmapSource source;
      using(RasterImage raster = RasterImageConverter.ConvertFromSource(bitmap, ConvertFromSourceOptions.None))
      {
         Console.WriteLine("Converted to RasterImage, bits/pixel is {0} and order is {1}", raster.BitsPerPixel, raster.Order);

         // Perform image processing on the raster image using LEADTOOLS
         FlipCommand cmd = new FlipCommand(false);
         cmd.Run(raster);

         // Convert the image back to WPF using default options
         source = RasterImageConverter.ConvertToSource(raster, ConvertToSourceOptions.None) as BitmapSource;
      }

      Console.WriteLine("Converted back WPF, pixel format is {0}", source.Format);

      // Save the image using WPF
      using(FileStream fs = File.Create(destFileName2))
      {
         JpegBitmapEncoder encoder = new JpegBitmapEncoder();
         encoder.QualityLevel = 30;
         encoder.Frames.Add(BitmapFrame.Create(source));
         encoder.Save(fs);
      }
   }

static class LEAD_VARS
{
   public const string ImagesDir = @"C:\Users\Public\Documents\LEADTOOLS Images";
}
SilverlightCSharpCopy Code
[TestMethod]
public void RasterImageConverterExample()
{
   string srcFileName = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.cmp";
   string destFileName1 = LeadtoolsExamples.Common.ImagesPath.Path + "Image1.jpg";
   // Use LEADTOOLS to convert the source image to a format that can be loaded with WPF
   RasterCodecs codecs = new RasterCodecs();
   codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, null);
}
SilverlightVBCopy Code
<TestMethod> _
Public Sub RasterImageConverterExample()
   Dim srcFileName As String = LeadtoolsExamples.Common.ImagesPath.Path & "Image1.cmp"
   Dim destFileName1 As String = LeadtoolsExamples.Common.ImagesPath.Path & "Image1.jpg"
   ' Use LEADTOOLS to convert the source image to a format that can be loaded with WPF
   Dim codecs As RasterCodecs = New RasterCodecs()
   codecs.Convert(srcFileName, destFileName1, RasterImageFormat.Jpeg, 0, 0, 0, Nothing)
End Sub

Remarks

The LEADTOOLS RasterImage class provides platform independent representation of an image. It serves as a working area for image manipulation and conversion. LEADTOOLS functions use this class for accessing the image in memory and for maintaining the characteristics of the image. This class contains the functionality needed to convert a LEADTOOLS Leadtools.RasterImage to and from a Windows Presentation Foundation (WPF) or Silverlight image objects.

The RasterImageConverter class contains the following functionality:

Method Description
ConvertToSource

Converts a LEADTOOLS Leadtools.RasterImage to WPF/Silverlight System.Windows.Media.ImageSource

ConvertFromSource

Converts a WPF/Silverlight System.Windows.Media.ImageSource to LEADTOOLS Leadtools.RasterImage

TestCompatible

Utility methods for testing whether a LEADTOOLS Leadtools.RasterImage is WPF/Silverlight compatible

For more information refer to RasterImage and WPF/Silverlight.

Inheritance Hierarchy

System.Object
   Leadtools.Windows.Media.RasterImageConverter

Requirements

Target Platforms: Windows 2000, Windows XP, Windows Server 2003 family, Windows Server 2008 family

See Also