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
158
159
160
|
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkOpeningByReconstructionImageFilter.txx,v $
Language: C++
Date: $Date: 2006-08-01 19:16:18 $
Version: $Revision: 1.3 $
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 __itkOpeningByReconstructionImageFilter_txx
#define __itkOpeningByReconstructionImageFilter_txx
#include "itkImageRegionIterator.h"
#include "itkImageRegionConstIterator.h"
#include "itkOpeningByReconstructionImageFilter.h"
#include "itkGrayscaleErodeImageFilter.h"
#include "itkReconstructionByDilationImageFilter.h"
#include "itkSubtractImageFilter.h"
#include "itkProgressAccumulator.h"
namespace itk {
template <class TInputImage, class TOutputImage, class TKernel>
OpeningByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::OpeningByReconstructionImageFilter()
: m_Kernel()
{
m_FullyConnected = false;
m_PreserveIntensities = false;
}
template <class TInputImage, class TOutputImage, class TKernel>
void
OpeningByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::GenerateInputRequestedRegion()
{
// call the superclass' implementation of this method
Superclass::GenerateInputRequestedRegion();
// We need all the input.
InputImagePointer input = const_cast<InputImageType *>(this->GetInput());
if( input )
{
input->SetRequestedRegion( input->GetLargestPossibleRegion() );
}
}
template <class TInputImage, class TOutputImage, class TKernel>
void
OpeningByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::EnlargeOutputRequestedRegion(DataObject *)
{
this->GetOutput()
->SetRequestedRegion( this->GetOutput()->GetLargestPossibleRegion() );
}
template <class TInputImage, class TOutputImage, class TKernel>
void
OpeningByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::GenerateData()
{
// Create a process accumulator for tracking the progress of this minipipeline
ProgressAccumulator::Pointer progress = ProgressAccumulator::New();
progress->SetMiniPipelineFilter(this);
// Allocate the output
this->AllocateOutputs();
// Delegate to an erode filter.
typename GrayscaleErodeImageFilter<TInputImage, TInputImage, TKernel>::Pointer
erode = GrayscaleErodeImageFilter<TInputImage, TInputImage, TKernel>::New();
erode->SetInput( this->GetInput() );
erode->SetKernel( this->m_Kernel );
// Delegate to a dilate filter.
typename ReconstructionByDilationImageFilter<TInputImage, TInputImage>::Pointer
dilate = ReconstructionByDilationImageFilter<TInputImage, TInputImage>::New();
dilate->SetMarkerImage( erode->GetOutput() );
dilate->SetMaskImage( this->GetInput() );
dilate->SetFullyConnected( m_FullyConnected );
progress->RegisterInternalFilter(erode, 0.5f);
progress->RegisterInternalFilter(dilate, 0.25f);
if (m_PreserveIntensities)
{
dilate->Update();
typename TInputImage::Pointer tempImage = TInputImage::New();
tempImage->SetRegions (erode->GetOutput()->GetBufferedRegion());
tempImage->Allocate();
ImageRegionConstIterator<TInputImage> inputIt(this->GetInput(),
erode->GetOutput()->GetBufferedRegion());
ImageRegionConstIterator<TInputImage> erodeIt(erode->GetOutput(),
erode->GetOutput()->GetBufferedRegion());
ImageRegionConstIterator<TInputImage> dilateIt(dilate->GetOutput(),
erode->GetOutput()->GetBufferedRegion());
ImageRegionIterator<TInputImage> tempIt(tempImage,
erode->GetOutput()->GetBufferedRegion());
while (!erodeIt.IsAtEnd())
{
if (erodeIt.Get() == dilateIt.Get())
{
tempIt.Set(inputIt.Get());
}
else
{
tempIt.Set(NumericTraits<InputImagePixelType>::NonpositiveMin());
}
++erodeIt;
++dilateIt;
++tempIt;
++inputIt;
}
typename ReconstructionByDilationImageFilter<TInputImage, TInputImage>::Pointer
dilateAgain = ReconstructionByDilationImageFilter<TInputImage, TInputImage>::New();
dilateAgain->SetMaskImage (this->GetInput());
dilateAgain->SetMarkerImage (tempImage);
dilateAgain->SetFullyConnected( m_FullyConnected );
dilateAgain->GraftOutput( this->GetOutput() );
progress->RegisterInternalFilter(dilateAgain, 0.25f);
dilateAgain->Update();
this->GraftOutput( dilateAgain->GetOutput() );
}
else
{
dilate->GraftOutput( this->GetOutput() );
dilate->Update();
this->GraftOutput( dilate->GetOutput() );
}
}
template<class TInputImage, class TOutputImage, class TKernel>
void
OpeningByReconstructionImageFilter<TInputImage, TOutputImage, TKernel>
::PrintSelf(std::ostream &os, Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "Kernel: " << m_Kernel << std::endl;
os << indent << "FullyConnected: " << m_FullyConnected << std::endl;
os << indent << "PreserveIntensities: " << m_PreserveIntensities << std::endl;
}
}// end namespace itk
#endif
|
