QmitkMutualInformationHistogramMetricView.cpp

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/*===================================================================

The Medical Imaging Interaction Toolkit (MITK)

Copyright (c) German Cancer Research Center,
Division of Medical and Biological Informatics.
All rights reserved.

This software is distributed WITHOUT ANY WARRANTY; without
even the implied warranty of MERCHANTABILITY or FITNESS FOR
A PARTICULAR PURPOSE.

See LICENSE.txt or http://www.mitk.org for details.

===================================================================*/

#include "QmitkMutualInformationHistogramMetricView.h"
#include "mitkImageAccessByItk.h"
#include <itkMutualInformationHistogramImageToImageMetric.h>

#include "QValidator"

QmitkMutualInformationHistogramMetricView::QmitkMutualInformationHistogramMetricView(QWidget *parent, Qt::WindowFlags f)
  : QmitkRigidRegistrationMetricsGUIBase(parent, f)
{
}

QmitkMutualInformationHistogramMetricView::~QmitkMutualInformationHistogramMetricView()
{
}

mitk::MetricParameters::MetricType QmitkMutualInformationHistogramMetricView::GetMetricType()
{
  return mitk::MetricParameters::MUTUALINFORMATIONHISTOGRAMIMAGETOIMAGEMETRIC;
}

itk::Object::Pointer QmitkMutualInformationHistogramMetricView::GetMetric()
{
  if (m_MovingImage.IsNotNull())
  {
    AccessByItk(m_MovingImage, GetMetric2);
    return m_MetricObject;
  }
  return nullptr;
}

template <class TPixelType, unsigned int VImageDimension>
itk::Object::Pointer QmitkMutualInformationHistogramMetricView::GetMetric2(
  itk::Image<TPixelType, VImageDimension> * /*itkImage1*/)
{
  typedef typename itk::Image<TPixelType, VImageDimension> FixedImageType;
  typedef typename itk::Image<TPixelType, VImageDimension> MovingImageType;
  typename itk::MutualInformationHistogramImageToImageMetric<FixedImageType, MovingImageType>::Pointer MetricPointer =
    itk::MutualInformationHistogramImageToImageMetric<FixedImageType, MovingImageType>::New();
  unsigned int nBins = m_Controls.m_NumberOfHistogramBinsMutualInformationHistogram->text().toInt();
  typename itk::MutualInformationHistogramImageToImageMetric<FixedImageType, MovingImageType>::HistogramType::SizeType
    histogramSize;
  histogramSize[0] = nBins;
  histogramSize[1] = nBins;
  MetricPointer->SetHistogramSize(histogramSize);
  MetricPointer->SetComputeGradient(m_Controls.m_ComputeGradient->isChecked());
  m_MetricObject = MetricPointer.GetPointer();
  return MetricPointer.GetPointer();
}

itk::Array<double> QmitkMutualInformationHistogramMetricView::GetMetricParameters()
{
  itk::Array<double> metricValues;
  metricValues.SetSize(2);
  metricValues.fill(0);
  metricValues[0] = m_Controls.m_ComputeGradient->isChecked();
  metricValues[1] = m_Controls.m_NumberOfHistogramBinsMutualInformationHistogram->text().toInt();
  return metricValues;
}

void QmitkMutualInformationHistogramMetricView::SetMetricParameters(itk::Array<double> metricValues)
{
  m_Controls.m_ComputeGradient->setChecked(metricValues[0]);
  m_Controls.m_NumberOfHistogramBinsMutualInformationHistogram->setText(QString::number(metricValues[1]));
}

QString QmitkMutualInformationHistogramMetricView::GetName()
{
  return "MutualInformationHistogram";
}

void QmitkMutualInformationHistogramMetricView::SetupUI(QWidget *parent)
{
  m_Controls.setupUi(parent);
  QValidator *validatorLineEditInput = new QIntValidator(0, 20000000, this);
  m_Controls.m_NumberOfHistogramBinsMutualInformationHistogram->setValidator(validatorLineEditInput);
}

bool QmitkMutualInformationHistogramMetricView::Maximize()
{
  return false;
}