message: FIX: buffer type for non-float instantiation
diff: @@ -149,7 +149,7 @@ PolynomialGainCorrectionImageFilter<TInputImage, TOutputImage>
  itk::ImageRegionConstIterator<InputImageType> itDark(m_DarkImage, darkRegion);
  // Get gain map buffer
  - const float *gainBuffer = m_GainImage->GetBufferPointer();
  + const typename OutputImageType::PixelType *gainBuffer = m_GainImage->GetBufferPointer();
  int startk = static_cast<int>(outputRegionForThread.GetIndex(2));
  for (int k = startk; k < startk + static_cast<int>(outputRegionForThread.GetSize(2)); k++)
  