public void Set(byte[] nValue, NPPImage_8uC1 mask)
{
status = NPPNativeMethods.NPPi.MemSet.nppiSet_8u_C3MR(nValue, _devPtrRoi, _pitch, _sizeRoi, mask.DevicePointerRoi, mask.Pitch);
Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiSet_8u_C3MR", status));
NPPException.CheckNppStatus(status, this);
}