public void Sub(NPPImage_16sC3 src2, NPPImage_16sC3 dest, int nScaleFactor)
{
status = NPPNativeMethods.NPPi.Sub.nppiSub_16s_C3RSfs(_devPtrRoi, _pitch, src2.DevicePointerRoi, src2.Pitch, dest.DevicePointerRoi, dest.Pitch, _sizeRoi, nScaleFactor);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiSub_16s_C3RSfs", status));
NPPException.CheckNppStatus(status, this);
}