/usr/include/ITK-4.5/itkImageRegistrationMethodImageSource.h is in libinsighttoolkit4-dev 4.5.0-3.
This file is owned by root:root, with mode 0o644.
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*
* Copyright Insight Software Consortium
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#ifndef __itkImageRegistrationMethodImageSource_h
#define __itkImageRegistrationMethodImageSource_h
#include "itkImage.h"
#include "itkImageRegionIteratorWithIndex.h"
#include "itkCommandIterationUpdate.h"
#include "itkOptimizerParameters.h"
/**
* This class generates two 2D-Gaussians (standard deviation RegionSize/2)
* One is shifted by 7,3 pixels from the other.
*
* These two images are provided to the registration methods in this
* directory in order to obtain a uniform test input data.
*
* Therefore the solution of the registration is |-7 -3|
*/
namespace itk
{
namespace testhelper
{
template< typename TFixedPixelType,
typename TMovingPixelType,
unsigned int NDimension >
class ImageRegistrationMethodImageSource : public itk::Object
{
public:
typedef ImageRegistrationMethodImageSource Self;
typedef Object Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef OptimizerParameters<double> ParametersType;
/** Method for creation through the object factory. */
itkNewMacro(Self);
/** Run-time type information (and related methods). */
itkTypeMacro(Image, Object);
typedef itk::Image<TMovingPixelType,NDimension> MovingImageType;
typedef itk::Image<TFixedPixelType,NDimension > FixedImageType;
const MovingImageType * GetMovingImage(void) const
{
return m_MovingImage.GetPointer();
}
const FixedImageType * GetFixedImage(void) const
{
return m_FixedImage.GetPointer();
}
const ParametersType & GetActualParameters(void) const
{
return m_Parameters;
}
void GenerateImages( const typename MovingImageType::SizeType & size )
{
typename MovingImageType::IndexType index;
index.Fill(0);
typename MovingImageType::RegionType region;
region.SetSize( size );
region.SetIndex( index );
m_MovingImage->SetLargestPossibleRegion( region );
m_MovingImage->SetBufferedRegion( region );
m_MovingImage->SetRequestedRegion( region );
m_MovingImage->Allocate();
m_FixedImage->SetLargestPossibleRegion( region );
m_FixedImage->SetBufferedRegion( region );
m_FixedImage->SetRequestedRegion( region );
m_FixedImage->Allocate();
/* Fill images with a 2D gaussian*/
typedef itk::ImageRegionIteratorWithIndex<MovingImageType> MovingImageIteratorType;
typedef itk::ImageRegionIteratorWithIndex<FixedImageType> FixedImageIteratorType;
itk::Point<double,2> center;
center[0] = (double)region.GetSize()[0]/2.0;
center[1] = (double)region.GetSize()[1]/2.0;
const double s = (double)region.GetSize()[0]/2.0;
itk::Point<double,2> p;
itk::Vector<double,2> d;
/* Set the displacement */
itk::Vector<double,2> displacement;
displacement[0] = m_Parameters[0];
displacement[1] = m_Parameters[1];
MovingImageIteratorType ri(m_MovingImage,region);
FixedImageIteratorType ti(m_FixedImage,region);
while(!ri.IsAtEnd())
{
p[0] = ri.GetIndex()[0];
p[1] = ri.GetIndex()[1];
d = p-center;
d += displacement;
const double x = d[0];
const double y = d[1];
const double value = 200.0 * vcl_exp( - ( x*x + y*y )/(s*s) );
ri.Set( static_cast<typename MovingImageType::PixelType>(value) );
++ri;
}
while(!ti.IsAtEnd())
{
p[0] = ti.GetIndex()[0];
p[1] = ti.GetIndex()[1];
d = p-center;
const double x = d[0];
const double y = d[1];
const double value = 200.0 * vcl_exp( - ( x*x + y*y )/(s*s) );
ti.Set( static_cast<typename FixedImageType::PixelType>(value) );
++ti;
}
}
protected:
ImageRegistrationMethodImageSource()
{
m_MovingImage = MovingImageType::New();
m_FixedImage = FixedImageType::New();
m_Parameters = ParametersType(2);
m_Parameters[0] = 7.0;
m_Parameters[1] = 3.0;
}
private:
typename FixedImageType::Pointer m_FixedImage;
typename MovingImageType::Pointer m_MovingImage;
ParametersType m_Parameters;
};
} // end namespace testhelper
} // end namespace itk
#endif
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