RasterImageConverter Class

C#
Visual Basic
WinRT C#
Objective-C
Java
WinRT JavaScript
C++

public static class RasterImageConverter

'Declaration
 
Public MustInherit NotInheritable Class RasterImageConverter

'Usage
 
Dim instance As RasterImageConverter

public sealed static class RasterImageConverter

@interface LTRasterImageConverter : NSObject

public class RasterImageConverter

function Leadtools.Converters.RasterImageConverter()

public ref class RasterImageConverter abstract sealed

The LEADTOOLS RasterImage class provides a 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 WinRT image object.

The RasterImageConverter class contains the following functionality:

Method	Description
ConvertToImageSource	Converts a LEADTOOLS Leadtools.RasterImage to a WinRT Windows.UI.Xaml.Media.ImageSource.
ConvertFromImageSource	Converts a WinRT Windows.UI.Xaml.Media.ImageSource to a LEADTOOLS Leadtools.RasterImage.
TestCompatible	Utility methods for testing whether a LEADTOOLS Leadtools.RasterImage is WinRT compatible.

For more information refer to RasterImage and WinRT.

C#
Visual Basic
WinRT C#
WinRT JavaScript
Silverlight C#
Silverlight VB

Copy Code

using Leadtools;
using Leadtools.Codecs;
using Leadtools.ImageProcessing;
using Leadtools.ImageProcessing.Color;
using Leadtools.Converters;

public async void RasterImageConverterExample()
{
   string srcFileName = @"Assets\Ocr1.tif";
   string destFileName = @"saved.png";
   RasterCodecs codecs = new RasterCodecs();

   ImageSource imageSource;

   // Load the source image image
   StorageFile loadFile = await Tools.AppInstallFolder.GetFileAsync(srcFileName);
   ILeadStream loadStream = LeadStreamFactory.Create(loadFile);
   using (IDisposable leadStreamDisposable = loadStream as IDisposable)
   {
      using (RasterImage rasterImage = await codecs.LoadAsync(loadStream))
      {
         // Convert it to an image source
         imageSource = RasterImageConverter.ConvertToImageSource(rasterImage, ConvertToImageOptions.None);
      }
   }

   // Convert the imageSource back to a raster image and save it
   using (RasterImage rasterImage = RasterImageConverter.ConvertFromImageSource(imageSource, ConvertFromImageOptions.None))
   {
      StorageFile saveFile = await Tools.AppLocalFolder.CreateFileAsync(destFileName, CreationCollisionOption.ReplaceExisting);
      ILeadStream saveStream = LeadStreamFactory.Create(saveFile);
      using (IDisposable leadStreamDisposable = saveStream as IDisposable)
      {
         await codecs.SaveAsync(rasterImage, saveStream, RasterImageFormat.Png, 32);
      }
   }

   codecs.Dispose();
}

Target Platforms

Reference

RasterImageConverter Members
Leadtools.Converters Namespace