How to convert ImageSource to Byte array?

Question

I use LeadTools for scanning.

I want to convert scanning image to byte.

void twainSession_AcquirePage(object sender, TwainAcquirePageEventArgs e)
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Answer 1

It seems that you can cast the result from .ConvertToSource to a BitmapSource instead of a ImageSource.

I am not 100% sure how this translate to your case but the doc from LeadTools show this VB sample:

   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

I think it should be like

BitmapSource source = RasterImageConverter.ConvertToSource(ScanImage, ConvertToSourceOptions.None) as BitmapSource;

Then you can copy the BitmapSource pixels with BitmapSource.CopyPixels