RasterImageConverter Class

public sealed static class RasterImageConverter 

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();
}