public int FilterUnsharpGetBufferSize(float nRadius, float nSigma) { int bufferSize = 0; status = NPPNativeMethods.NPPi.FixedFilters.nppiFilterUnsharpGetBufferSize_8u_C3R(nRadius, nSigma, ref bufferSize); Debug.WriteLine(String.Format("{0:G}, {1}: {2}", DateTime.Now, "nppiFilterUnsharpGetBufferSize_8u_C3R", status)); NPPException.CheckNppStatus(status, this); return bufferSize; }