forked from InsightSoftwareConsortium/ITK
-
Notifications
You must be signed in to change notification settings - Fork 0
/
itkPointSetToImageMetric.txx
157 lines (121 loc) · 4.05 KB
/
itkPointSetToImageMetric.txx
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkPointSetToImageMetric.txx
Language: C++
Date: $Date$
Version: $Revision$
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#ifndef _itkPointSetToImageMetric_txx
#define _itkPointSetToImageMetric_txx
#include "itkPointSetToImageMetric.h"
namespace itk
{
/*
* Constructor
*/
template <class TFixedPointSet, class TMovingImage>
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::PointSetToImageMetric()
{
m_FixedPointSet = 0; // has to be provided by the user.
m_MovingImage = 0; // has to be provided by the user.
m_Transform = 0; // has to be provided by the user.
m_Interpolator = 0; // has to be provided by the user.
m_ComputeGradient = true; // metric computes gradient by default
m_NumberOfPixelsCounted = 0; // initialize to zero
m_GradientImage = NULL; // computed at initialization
}
/*
* Set the parameters that define a unique transform
*/
template <class TFixedPointSet, class TMovingImage>
void
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::SetTransformParameters( const ParametersType & parameters ) const
{
if( !m_Transform )
{
itkExceptionMacro(<<"Transform has not been assigned");
}
m_Transform->SetParameters( parameters );
}
/*
* PrintSelf
*/
template <class TFixedPointSet, class TMovingImage>
void
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::Initialize(void) throw ( ExceptionObject )
{
if( !m_Transform )
{
itkExceptionMacro(<<"Transform is not present");
}
if( !m_Interpolator )
{
itkExceptionMacro(<<"Interpolator is not present");
}
if( !m_MovingImage )
{
itkExceptionMacro(<<"MovingImage is not present");
}
if( !m_FixedPointSet )
{
itkExceptionMacro(<<"FixedPointSet is not present");
}
// If the image is provided by a source, update the source.
if( m_MovingImage->GetSource() )
{
m_MovingImage->GetSource()->Update();
}
// If the point set is provided by a source, update the source.
if( m_FixedPointSet->GetSource() )
{
m_FixedPointSet->GetSource()->Update();
}
m_Interpolator->SetInputImage( m_MovingImage );
if ( m_ComputeGradient )
{
GradientImageFilterPointer gradientFilter
= GradientImageFilterType::New();
gradientFilter->SetInput( m_MovingImage );
const typename MovingImageType::SpacingType&
spacing = m_MovingImage->GetSpacing();
double maximumSpacing=0.0;
for(unsigned int i=0; i<MovingImageDimension; i++)
{
if( spacing[i] > maximumSpacing )
{
maximumSpacing = spacing[i];
}
}
gradientFilter->SetSigma( maximumSpacing );
gradientFilter->SetNormalizeAcrossScale( true );
gradientFilter->Update();
m_GradientImage = gradientFilter->GetOutput();
}
}
/*
* PrintSelf
*/
template <class TFixedPointSet, class TMovingImage>
void
PointSetToImageMetric<TFixedPointSet,TMovingImage>
::PrintSelf(std::ostream& os, Indent indent) const
{
Superclass::PrintSelf( os, indent );
os << indent << "Moving Image: " << m_MovingImage.GetPointer() << std::endl;
os << indent << "Fixed Image: " << m_FixedPointSet.GetPointer() << std::endl;
os << indent << "Gradient Image: " << m_GradientImage.GetPointer() << std::endl;
os << indent << "Transform: " << m_Transform.GetPointer() << std::endl;
os << indent << "Interpolator: " << m_Interpolator.GetPointer() << std::endl;
os << indent << "Number of Pixels Counted: " << m_NumberOfPixelsCounted << std::endl;
os << indent << "Compute Gradient: " << m_ComputeGradient << std::endl;
}
} // end namespace itk
#endif