MIRA
NearestNeighborInterpolator.h
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38 
47 #ifndef _MIRA_NEARESTNEIGHBORINTERPOLATOR_H__
48 #define _MIRA_NEARESTNEIGHBORINTERPOLATOR_H__
49 
50 #include <assert.h>
51 
52 #include <math/IntervalFilter.h>
53 
54 namespace mira {
55 
57 
69 {
70 public:
71  bool canExtrapolate() const { return true; }
72  int samples() const { return 2; }
73  int samplesBefore() const { return 1; }
74  int samplesAfter() const { return 1; }
75 
76  template <typename Tx, typename Ty, typename ContainerTx, typename ContainerTy>
77  const Ty& apply(const ContainerTx& x, const ContainerTy& y, const Tx& xx)
78  {
79  assert(x.size()==2);
80  assert(x.size()==y.size());
81 
82  // catch extrapolation cases
83  if(xx <= x.front())
84  return y.front();
85 
86  if(xx >= x.back())
87  return y.back();
88 
89  // find the closet point of the two points
90  if(xx-x.front() < x.back()-xx)
91  return y.front();
92  else
93  return y.back();
94  }
95 };
96 
98 
99 } // namespace
100 
101 #endif /* _MIRA_NEARESTNEIGHBORINTERPOLATOR_H_ */
1D nearest neighbor interpolator.
Definition: NearestNeighborInterpolator.h:68
specialize cv::DataType for our ImgPixel and inherit from cv::DataType<Vec>
Definition: IOService.h:67
int samplesAfter() const
Definition: NearestNeighborInterpolator.h:74
bool canExtrapolate() const
Definition: NearestNeighborInterpolator.h:71
IntervalFilter base class/concept.
Concept and base class for all Interpolators and Filters.
Definition: IntervalFilter.h:61
int samples() const
Definition: NearestNeighborInterpolator.h:72
int samplesBefore() const
Definition: NearestNeighborInterpolator.h:73
const Ty & apply(const ContainerTx &x, const ContainerTy &y, const Tx &xx)
Definition: NearestNeighborInterpolator.h:77