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RasterImageConverter Class

Summary
Converts a LEADTOOLS Leadtools.RasterImage to and from Windows Presentation Foundation (WPF) image objects.
Syntax
C#
C++
public static class RasterImageConverter 
public ref class RasterImageConverter abstract sealed  
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) image objects.

The RasterImageConverter class contains the following functionality:

Method Description
ConvertToSource

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

ConvertFromSource

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

TestCompatible

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

For more information refer to RasterImage and WPF.

Example
C#
using Leadtools; 
using Leadtools.Codecs; 
using Leadtools.ImageProcessing; 
using Leadtools.Windows.Media; 
 
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:\LEADTOOLS22\Resources\Images"; 
} 
Requirements

Target Platforms

Help Version 22.0.2022.9.26
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© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.

Products | Support | Contact Us | Intellectual Property Notices
© 1991-2022 LEAD Technologies, Inc. All Rights Reserved.