I use LeadTools for scanning.
I want to convert scanning image to byte.
void twainSession_AcquirePage(object sender, TwainAcquirePageEventArgs e)
{
ScanImage = e.Image.Clone();
ImageSource source = RasterImageConverter.ConvertToSource(ScanImage, ConvertToSourceOptions.None);
}
How to convert ImageSource to Byte array?
Unless you explicitly need an ImageSource object, there's no need to convert to one. You can get a byte array containing the pixel data directly from Leadtools.RasterImage using this code:
int totalPixelBytes = e.Image.BytesPerLine * e.Image.Height;
byte[] byteArray = new byte[totalPixelBytes];
e.Image.GetRow(0, byteArray, 0, totalPixelBytes);
Note that this gives you only the raw pixel data.
If you need a memory stream or byte array that contains a complete image such as JPEG, you also do not need to convert to source. You can use the Leadtools.RasterCodecs class like this:
RasterCodecs codecs = new RasterCodecs();
System.IO.MemoryStream memStream = new System.IO.MemoryStream();
codecs.Save(e.Image, memStream, RasterImageFormat.Jpeg, 24);
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