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

I ran into this issue in Xamarin.Forms where I needed to convert a taken photo from the camera into a Byte array. After spending days trying to find out how, I saw this solution in the Xamarin forums.

var photo = await CrossMedia.Current.TakePhotoAsync(new Plugin.Media.Abstractions.StoreCameraMediaOptions() { });

byte[] imageArray = null;

using (MemoryStream memory = new MemoryStream()) {

    Stream stream = photo.GetStream();
    stream.CopyTo(memory);
    imageArray = memory.ToArray();
}

Source: https://forums.xamarin.com/discussion/156236/how-to-get-the-bytes-from-the-imagesource-in-xamarin-forms