SSDImageSimilarity.h

// ====================================================================================================   
//                                                                                                        
//   SuPReMo: Surrogate Parameterised Respiratory Motion Model                                            
//            An implementation of the generalised motion modelling and image registration framework      
//                                                                                                        
//   Copyright (c) University College London (UCL). 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 in the top level directory for details.                                              
//                                                                                                        
// ====================================================================================================   
 
 
 
 
#pragma once
 
#include "ImageSimilarity.h"
 
 
class SSDImageSimilarity:public ImageSimilarity
{
public:
  typedef float PrecisionType;
 
  SSDImageSimilarity();
 
 
  ~SSDImageSimilarity();
  
  double GetSimilarityMeasureValueForImages( nifti_image* source,
                                             nifti_image* reference );
  
  virtual void GetSimilarityGradientWRTVoxels( nifti_image* referenceImg,
                                                 nifti_image* sourceImg,
                                               nifti_image* similarityGradientWRTVoxelsOutputImage );
private:
  double GetSSDValue( nifti_image* referenceImage, nifti_image* sourceImage );
};