ConvertFromSource Method

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

public static RasterImage ConvertFromSource( 
   ImageSource image, 
   ConvertFromSourceOptions options 
) 

  
Public Shared Function ConvertFromSource( _ 
   ByVal image As ImageSource, _ 
   ByVal options As Leadtools.Windows.Media.ConvertFromSourceOptions _ 
) As Leadtools.RasterImage 

public: 
static Leadtools.RasterImage^ ConvertFromSource(  
   ImageSource^ image, 
   Leadtools.Windows.Media.ConvertFromSourceOptions options 
)  

Parameters

Return Value

A Leadtools.RasterImage object representing the converted image.

Microsoft Windows Presentation Foundations (WPF)

LEADTOOLS and WPF support different pixel formats. These pixel formats may not be identical in some cases. The conversion process takes care of converting scanlines to a suitable format that best matches the source data. The following table shows the result bits/pixel byte order achieved when passing images with different pixel format values:

Microsoft Silverlight

Microsoft Silverlight currently offers support for 32-bits/pixels only. So the result from this method will always be a Leadtools.RasterImage object with RasterImage.BitsPerPixel equals to 32.

Use the ConvertToSource method to convert LEADTOOLS Leadtools.RasterImage to a WPF/Silverlight System.Windows.Media.ImageSource object.

The conversion works by copying the image data over to the new destination. Currently, there is no support for sharing memory between a Leadtools.RasterImage and an System.Windows.Media.ImageSource.

For more information refer to RasterImage and WPF/Silverlight.

This example will use get the WPF/Silverlight System.Windows.Media.ImageSource in an System.Windows.Controls.Image control, use LEADTOOLS to invert it and then set it back into the control.

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.Windows.Media; 
 
private void ConvertFromSourceExample(System.Windows.Controls.Image imageControl) 
{ 
   // Get the WPF/Silverlight source image in the Image control 
   ImageSource source = imageControl.Source; 
 
   // Convert it to a LEADTOOLS RasterImage 
   using (RasterImage rasterImage = RasterImageConverter.ConvertFromSource(source, ConvertFromSourceOptions.None)) 
   { 
      // Now, use LEADTOOLS to Invert the image 
      Leadtools.ImageProcessing.Color.InvertCommand cmd = new Leadtools.ImageProcessing.Color.InvertCommand(); 
      cmd.Run(rasterImage); 
 
      // Convert the back to WPF/Silverlight 
      source = RasterImageConverter.ConvertToSource(rasterImage, ConvertToSourceOptions.None); 
 
      // Set it back into the Image control 
      imageControl.Source = source; 
   } 
} 

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.ImageProcessing.Color 
Imports Leadtools.Windows.Media 
 
Private Sub ConvertFromSourceExample(ByVal imageControl As System.Windows.Controls.Image) 
   ' Get the WPF/Silverlight source image in the Image control 
   Dim source As ImageSource = imageControl.Source 
 
   ' Convert it to a LEADTOOLS RasterImage 
   Using rasterImage As RasterImage = RasterImageConverter.ConvertFromSource(source, ConvertFromSourceOptions.None) 
      ' Now, use LEADTOOLS to Invert the image 
      Dim cmd As New InvertCommand() 
      cmd.Run(rasterImage) 
 
      ' Convert the back to WPF/Silverlight 
      source = RasterImageConverter.ConvertToSource(rasterImage, ConvertToSourceOptions.None) 
 
      ' Set it back into the Image control 
      imageControl.Source = source 
   End Using 
End Sub 

using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.Windows.Media; 
 
private void ConvertFromSourceExample(System.Windows.Controls.Image imageControl) 
{ 
   // Get the WPF/Silverlight source image in the Image control 
   ImageSource source = imageControl.Source; 
 
   // Convert it to a LEADTOOLS RasterImage 
   using (RasterImage rasterImage = RasterImageConverter.ConvertFromSource(source, ConvertFromSourceOptions.None)) 
   { 
      // Now, use LEADTOOLS to Invert the image 
      Leadtools.ImageProcessing.Color.InvertCommand cmd = new Leadtools.ImageProcessing.Color.InvertCommand(); 
      cmd.Run(rasterImage); 
 
      // Convert the back to WPF/Silverlight 
      source = RasterImageConverter.ConvertToSource(rasterImage, ConvertToSourceOptions.None); 
 
      // Set it back into the Image control 
      imageControl.Source = source; 
   } 
} 

Imports Leadtools 
Imports Leadtools.Codecs 
Imports Leadtools.ImageProcessing 
Imports Leadtools.Windows.Media 
Imports Leadtools.ImageProcessing.Color 
 
Private Sub ConvertFromSourceExample(ByVal imageControl As System.Windows.Controls.Image) 
   ' Get the WPF/Silverlight source image in the Image control 
   Dim source As ImageSource = imageControl.Source 
 
   ' Convert it to a LEADTOOLS RasterImage 
   Using rasterImage As RasterImage = RasterImageConverter.ConvertFromSource(source, ConvertFromSourceOptions.None) 
      ' Now, use LEADTOOLS to Invert the image 
      Dim cmd As InvertCommand = New InvertCommand() 
      cmd.Run(rasterImage) 
 
      ' Convert the back to WPF/Silverlight 
      source = RasterImageConverter.ConvertToSource(rasterImage, ConvertToSourceOptions.None) 
 
      ' Set it back into the Image control 
      imageControl.Source = source 
   End Using 
End Sub 

Target Platforms

Reference

RasterImageConverter Class

RasterImageConverter Members