// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void MultiOtsuThreshold::execute()
{
  //int err = 0;
  dataCheck();
  if(getErrorCondition() < 0) { return; }

  DataContainer::Pointer m = getDataContainerArray()->getDataContainer(getSelectedCellArrayPath().getDataContainerName());
  QString attrMatName = getSelectedCellArrayPath().getAttributeMatrixName();

  //get dims
  size_t udims[3] = {0, 0, 0};
  m->getGeometryAs<ImageGeom>()->getDimensions(udims);
#if (CMP_SIZEOF_SIZE_T == 4)
  typedef int32_t DimType;
#else
  typedef int64_t DimType;
#endif
  DimType dims[3] =
  {
    static_cast<DimType>(udims[0]),
    static_cast<DimType>(udims[1]),
    static_cast<DimType>(udims[2]),
  };

  //wrap input as itk image
  ImageProcessing::DefaultImageType::Pointer inputImage = ITKUtilitiesType::CreateItkWrapperForDataPointer(m, attrMatName, m_SelectedCellArray);

  if(m_Slice)
  {
    //define 2d histogram generator
    typedef itk::OtsuMultipleThresholdsImageFilter< ImageProcessing::DefaultSliceType, ImageProcessing::DefaultSliceType > ThresholdType;
    ThresholdType::Pointer otsuThresholder = ThresholdType::New();

    //wrap output buffer as image
    ImageProcessing::DefaultImageType::Pointer outputImage = ITKUtilitiesType::CreateItkWrapperForDataPointer(m, attrMatName, m_NewCellArray);

    //loop over slices
    for(int i = 0; i < dims[2]; i++)
    {
      //get slice
      ImageProcessing::DefaultSliceType::Pointer slice = ITKUtilitiesType::ExtractSlice(inputImage, ImageProcessing::ZSlice, i);

      //threshold
      otsuThresholder->SetInput(slice);
      otsuThresholder->SetNumberOfThresholds(m_Levels);
      otsuThresholder->SetLabelOffset(1);
      //execute filters
      try
      {
        otsuThresholder->Update();
      }
      catch( itk::ExceptionObject& err )
      {
        setErrorCondition(-5);
        QString ss = QObject::tr("Failed to execute itk::OtsuMultipleThresholdsImageFilter filter. Error Message returned from ITK:\n   %1").arg(err.GetDescription());
        notifyErrorMessage(getHumanLabel(), ss, getErrorCondition());
      }

      //copy back into volume
      ITKUtilitiesType::SetSlice(outputImage, otsuThresholder->GetOutput(), ImageProcessing::ZSlice, i);
    }
  }
  else
  {
    typedef itk::OtsuMultipleThresholdsImageFilter< ImageProcessing::DefaultImageType, ImageProcessing::DefaultImageType > ThresholdType;
    ThresholdType::Pointer otsuThresholder = ThresholdType::New();
    otsuThresholder->SetInput(inputImage);
    otsuThresholder->SetNumberOfThresholds(m_Levels);
    otsuThresholder->SetLabelOffset(1);

    ITKUtilitiesType::SetITKFilterOutput(otsuThresholder->GetOutput(), m_NewCellArrayPtr.lock());
    //execute filters
    try
    {
      otsuThresholder->Update();
    }
    catch( itk::ExceptionObject& err )
    {
      setErrorCondition(-5);
      QString ss = QObject::tr("Failed to execute itk::OtsuMultipleThresholdsImageFilter filter. Error Message returned from ITK:\n   %1").arg(err.GetDescription());
      notifyErrorMessage(getHumanLabel(), ss, getErrorCondition());
    }
  }

  //array name changing/cleanup
  if(m_SaveAsNewArray == false)
  {
    AttributeMatrix::Pointer attrMat = m->getAttributeMatrix(m_SelectedCellArrayPath.getAttributeMatrixName());
    attrMat->removeAttributeArray(m_SelectedCellArrayPath.getDataArrayName());
    attrMat->renameAttributeArray(m_NewCellArrayName, m_SelectedCellArrayPath.getDataArrayName());
  }

  /* Let the GUI know we are done with this filter */
  notifyStatusMessage(getHumanLabel(), "Complete");
}
// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void SobelEdge::execute()
{
  dataCheck();
  if(getErrorCondition() < 0) { return; }

  DataContainer::Pointer m = getDataContainerArray()->getDataContainer(getSelectedCellArrayPath().getDataContainerName());
  QString attrMatName = getSelectedCellArrayPath().getAttributeMatrixName();

  //wrap m_RawImageData as itk::image
  ImageProcessing::DefaultImageType::Pointer inputImage = ITKUtilitiesType::CreateItkWrapperForDataPointer(m, attrMatName, m_SelectedCellArray);

  if(m_Slice)
  {
    //wrap output array
    ImageProcessing::DefaultImageType::Pointer outputImage = ITKUtilitiesType::CreateItkWrapperForDataPointer(m, attrMatName, m_NewCellArray);

    //get dimensions
    size_t udims[3] = {0, 0, 0};
    m->getGeometryAs<ImageGeom>()->getDimensions(udims);
#if (CMP_SIZEOF_SIZE_T == 4)
    typedef int32_t DimType;
#else
    typedef int64_t DimType;
#endif
    DimType dims[3] =
    {
      static_cast<DimType>(udims[0]),
      static_cast<DimType>(udims[1]),
      static_cast<DimType>(udims[2]),
    };

    //create edge filter
    typedef itk::SobelEdgeDetectionImageFilter<ImageProcessing::DefaultSliceType, ImageProcessing::FloatSliceType> SobelFilterType;
    SobelFilterType::Pointer sobelFilter = SobelFilterType::New();

    //convert result back to uint8
    typedef itk::RescaleIntensityImageFilter<ImageProcessing::FloatSliceType, ImageProcessing::DefaultSliceType> RescaleImageType;
    RescaleImageType::Pointer rescaleFilter = RescaleImageType::New();
    rescaleFilter->SetOutputMinimum(0);
    rescaleFilter->SetOutputMaximum(255);

    //loop over slices applying filters
    for(int i = 0; i < dims[2]; ++i)
    {
      QString ss = QObject::tr("Finding Edges On Slice: %1").arg(i + 1);
      notifyStatusMessage(getMessagePrefix(), getHumanLabel(), ss);

      //get slice
      ImageProcessing::DefaultSliceType::Pointer inputSlice = ITKUtilitiesType::ExtractSlice(inputImage, ImageProcessing::ZSlice, i);

      //run filters
      sobelFilter->SetInput(inputSlice);
      rescaleFilter->SetInput(sobelFilter->GetOutput());


      //execute filters
      try
      {
        sobelFilter->Update();
        rescaleFilter->Update();
      }
      catch( itk::ExceptionObject& err )
      {
        setErrorCondition(-5);
        QString ss = QObject::tr("Failed to execute itk::SobelEdgeDetectionImageFilter filter. Error Message returned from ITK:\n   %1").arg(err.GetDescription());
        notifyErrorMessage(getHumanLabel(), ss, getErrorCondition());
      }

      //copy into volume
      ITKUtilitiesType::SetSlice(outputImage, rescaleFilter->GetOutput(), ImageProcessing::ZSlice, i);
    }
  }
  else
  {
    //create edge filter
    typedef itk::SobelEdgeDetectionImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType> SobelFilterType;
    SobelFilterType::Pointer sobelFilter = SobelFilterType::New();
    sobelFilter->SetInput(inputImage);

    //convert result back to uint8
    typedef itk::RescaleIntensityImageFilter<ImageProcessing::FloatImageType, ImageProcessing::DefaultImageType> RescaleImageType;
    RescaleImageType::Pointer rescaleFilter = RescaleImageType::New();
    rescaleFilter->SetInput(sobelFilter->GetOutput());
    rescaleFilter->SetOutputMinimum(0);
    rescaleFilter->SetOutputMaximum(255);

    //have filter write to dream3d array instead of creating its own buffer
    ITKUtilitiesType::SetITKFilterOutput(rescaleFilter->GetOutput(), m_NewCellArrayPtr.lock());

    //execute filters
    try
    {
      sobelFilter->Update();
      rescaleFilter->Update();
    }
    catch( itk::ExceptionObject& err )
    {
      setErrorCondition(-5);
      QString ss = QObject::tr("Failed to execute itk::SobelEdgeDetectionImageFilter filter. Error Message returned from ITK:\n   %1").arg(err.GetDescription());
      notifyErrorMessage(getHumanLabel(), ss, getErrorCondition());
    }

  }

  //array name changing/cleanup
  if(m_SaveAsNewArray == false)
  {
    AttributeMatrix::Pointer attrMat = m->getAttributeMatrix(m_SelectedCellArrayPath.getAttributeMatrixName());
    attrMat->removeAttributeArray(m_SelectedCellArrayPath.getDataArrayName());
    attrMat->renameAttributeArray(m_NewCellArrayName, m_SelectedCellArrayPath.getDataArrayName());
  }

  /* Let the GUI know we are done with this filter */
  notifyStatusMessage(getHumanLabel(), "Complete");
}
// -----------------------------------------------------------------------------
//
// -----------------------------------------------------------------------------
void ImageMath::execute()
{
  //int err = 0;
  dataCheck();
  if(getErrorCondition() < 0) { return; }

  DataContainer::Pointer m = getDataContainerArray()->getDataContainer(getSelectedCellArrayPath().getDataContainerName());
  QString attrMatName = getSelectedCellArrayPath().getAttributeMatrixName();

  //wrap m_RawImageData as itk::image
  ImageProcessing::DefaultImageType::Pointer inputImage = ITKUtilitiesType::CreateItkWrapperForDataPointer(m, attrMatName, m_SelectedCellArray);

  //define filter types
  typedef itk::AddImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType, ImageProcessing::FloatImageType> AddType;
  typedef itk::SubtractImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType, ImageProcessing::FloatImageType> SubtractType;
  typedef itk::MultiplyImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType, ImageProcessing::FloatImageType> MultiplyType;
  typedef itk::DivideImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType, ImageProcessing::FloatImageType> DivideType;
  typedef itk::MinimumImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType, ImageProcessing::FloatImageType> MinType;
  typedef itk::MaximumImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType, ImageProcessing::FloatImageType> MaxType;
  typedef itk::BinaryFunctorImageFilter< ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType, ImageProcessing::FloatImageType, ImageProcessing::Functor::Gamma<ImageProcessing::FloatPixelType> > GammaType;
  typedef itk::LogImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType> LogType;
  typedef itk::ExpImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType> ExpType;
  typedef itk::SquareImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType> SquareType;
  typedef itk::SqrtImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::FloatImageType> SqrtType;
  typedef itk::InvertIntensityImageFilter<ImageProcessing::DefaultImageType, ImageProcessing::DefaultImageType> InvertType;

  //set up filter to cap image range + round
  typedef itk::UnaryFunctorImageFilter< ImageProcessing::FloatImageType, ImageProcessing::DefaultImageType, ImageProcessing::Functor::LimitsRound<ImageProcessing::FloatPixelType, ImageProcessing::DefaultPixelType> > LimitsRoundType;
  LimitsRoundType::Pointer limitsRound = LimitsRoundType::New();

  //apply selected operation
  switch(m_Operator)
  {
    case 0://add
    {
      AddType::Pointer add = AddType::New();
      add->SetInput1(inputImage);
      add->SetConstant2(m_Value);
      limitsRound->SetInput(add->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 1://subtract
    {
      SubtractType::Pointer subtract = SubtractType::New();
      subtract->SetInput1(inputImage);
      subtract->SetConstant2(m_Value);
      limitsRound->SetInput(subtract->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 2://multiply
    {
      MultiplyType::Pointer multiply = MultiplyType::New();
      multiply->SetInput1(inputImage);
      multiply->SetConstant2(m_Value);
      limitsRound->SetInput(multiply->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 3://divide
    {
      DivideType::Pointer divide = DivideType::New();
      divide->SetInput1(inputImage);
      divide->SetConstant2(m_Value);
      limitsRound->SetInput(divide->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 4://min
    {
      MinType::Pointer minimum = MinType::New();
      minimum->SetInput1(inputImage);
      minimum->SetConstant2(m_Value);
      limitsRound->SetInput(minimum->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 5://max
    {
      MaxType::Pointer maximum = MaxType::New();
      maximum->SetInput1(inputImage);
      maximum->SetConstant2(m_Value);
      limitsRound->SetInput(maximum->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 6://gamma
    {
      GammaType::Pointer gamma = GammaType::New();
      gamma->SetInput1(inputImage);
      gamma->SetConstant2(m_Value);
      limitsRound->SetInput(gamma->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 7://log
    {
      LogType::Pointer logfilter = LogType::New();
      logfilter->SetInput(inputImage);
      limitsRound->SetInput(logfilter->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 8://exp
    {
      ExpType::Pointer expfilter = ExpType::New();
      expfilter->SetInput(inputImage);
      limitsRound->SetInput(expfilter->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 9://square
    {
      SquareType::Pointer square = SquareType::New();
      square->SetInput(inputImage);
      limitsRound->SetInput(square->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 10://squareroot
    {
      SqrtType::Pointer sqrtfilter = SqrtType::New();
      sqrtfilter->SetInput(inputImage);
      limitsRound->SetInput(sqrtfilter->GetOutput());
      ITKUtilitiesType::SetITKFilterOutput(limitsRound->GetOutput(), m_NewCellArrayPtr.lock());
      limitsRound->Update();
    }
    break;

    case 11://invert
    {
      InvertType::Pointer invert = InvertType::New();
      invert->SetInput(inputImage);
      ITKUtilitiesType::SetITKFilterOutput(invert->GetOutput(), m_NewCellArrayPtr.lock());
      invert->Update();
    }
    break;
  }

  //array name changing/cleanup
  if(m_SaveAsNewArray == false)
  {
    AttributeMatrix::Pointer attrMat = m->getAttributeMatrix(m_SelectedCellArrayPath.getAttributeMatrixName());
    attrMat->removeAttributeArray(m_SelectedCellArrayPath.getDataArrayName());
    attrMat->renameAttributeArray(m_NewCellArrayName, m_SelectedCellArrayPath.getDataArrayName());
  }

  /* Let the GUI know we are done with this filter */
  notifyStatusMessage(getHumanLabel(), "Complete");
}