find_fwhm_in_image.h

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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__