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//

//

/*

    Copyright (C) 2004- 2009, Hammersmith Imanet

    This file is part of STIR.


    SPDX-License-Identifier: Apache-2.0


    See STIR/LICENSE.txt for details

*/

#ifndef __find_fwhm_in_image_H__

#define __find_fwhm_in_image_H__


#include "stir/shared_ptr.h"

#include "stir/DiscretisedDensity.h"

#include "stir/DiscretisedDensityOnCartesianGrid.h"

#include <list>


START_NAMESPACE_STIR


template <class RandomAccessIterType>

inline float find_level_width(const RandomAccessIterType& begin_iterator,

                              const RandomAccessIterType& max_iterator,

                              const RandomAccessIterType& end_iterator,

                              const float level_height);

template <class RandomAccessIterType>

inline float

find_level_width(const RandomAccessIterType& begin_iterator, const RandomAccessIterType& end_iterator, const float level_height);

template <class elemT>

BasicCoordinate<3, int> maximum_location_per_slice(const Array<3, elemT>& input_array, const int slice, const int dimension);


template <class elemT>

Array<1, elemT> interpolate_line(const Array<3, elemT>& input_array,

                                 const BasicCoordinate<3, int>& max_location,

                                 const BasicCoordinate<3, bool>& do_direction,

                                 const int dimension);


template <int num_dimensions, class elemT>


struct ResolutionIndex

{

  elemT voxel_value;

  BasicCoordinate<num_dimensions, int> voxel_location;

  BasicCoordinate<num_dimensions, elemT> resolution;

};


template <class elemT>

std::list<ResolutionIndex<3, float>> find_fwhm_in_image(DiscretisedDensity<3, elemT>& input_image,

                                                        const unsigned int num_maxima,

                                                        const float level,

                                                        const int dimension,

                                                        const bool nema);

END_NAMESPACE_STIR


#include "stir/find_fwhm_in_image.inl"


#endif // __find_fwhm_in_image_H__

DiscretisedDensityOnCartesianGrid.h
defines the stir::DiscretisedDensityOnCartesianGrid class

DiscretisedDensity.h
defines the stir::DiscretisedDensity class

stir::BasicCoordinate
class BasicCoordinate<int num_dimensions, typename coordT> defines num_dimensions -dimensional coordi...
Definition BasicCoordinate.h:57

stir::DiscretisedDensity
This abstract class is the basis for all image representations.
Definition DiscretisedDensity.h:99

find_fwhm_in_image.inl
A collection of functions to measure resolution.

stir::find_fwhm_in_image
std::list< ResolutionIndex< 3, float > > find_fwhm_in_image(DiscretisedDensity< 3, elemT > &input_image, const unsigned int num_maxima, const float level, const int dimension, const bool nema)
Finds FWHM, FWTM etc (in mm) for a number of point sources or a line source.
Definition find_fwhm_in_image.cxx:58

stir::maximum_location_per_slice
BasicCoordinate< 3, int > maximum_location_per_slice(const Array< 3, elemT > &input_array, const int slice, const int dimension)
finds the maximum of the Input_Array in the given slice at the given dimension (z=1,...
Definition find_fwhm_in_image.cxx:115

stir::find_level_width
float find_level_width(const RandomAccessIterType &begin_iterator, const RandomAccessIterType &max_iterator, const RandomAccessIterType &end_iterator, const float level_height)
find width at a level
Definition find_fwhm_in_image.inl:28

stir::interpolate_line
Array< 1, elemT > interpolate_line(const Array< 3, elemT > &input_array, const BasicCoordinate< 3, int > &max_location, const BasicCoordinate< 3, bool > &do_direction, const int dimension)
extract a line from the given array after determining its locatin with a parabolic fit
Definition find_fwhm_in_image.cxx:135

shared_ptr.h
Import of std::shared_ptr, std::dynamic_pointer_cast and std::static_pointer_cast into the stir names...

stir::ResolutionIndex
a structure that is used to hold the output of the function find_fwhm_in_image.
Definition find_fwhm_in_image.h:101