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
161
162
163
164
165
166
167
168
169
170
|
/*
* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*/
#ifndef otbStreamingResampleImageFilter_txx
#define otbStreamingResampleImageFilter_txx
#include "otbStreamingResampleImageFilter.h"
#include "itkProgressAccumulator.h"
#include "otbImage.h"
namespace otb
{
template <class TInputImage, class TOutputImage, class TInterpolatorPrecisionType>
StreamingResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType>
::StreamingResampleImageFilter()
{
// internal filters instantiation
m_DisplacementFilter = DisplacementFieldGeneratorType::New();
m_WarpFilter = WarpImageFilterType::New();
m_SignedOutputSpacing = m_DisplacementFilter->GetOutputSpacing();
// Initialize the displacement field spacing to zero : inconsistent
// value
this->SetDisplacementFieldSpacing(itk::NumericTraits<SpacingType>::ZeroValue());
// Wire minipipeline
m_WarpFilter->SetDisplacementField(m_DisplacementFilter->GetOutput());
}
template <class TInputImage, class TOutputImage, class TInterpolatorPrecisionType>
void
StreamingResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType>
::GenerateData()
{
// Set up progress reporting
typename itk::ProgressAccumulator::Pointer progress = itk::ProgressAccumulator::New();
progress->SetMiniPipelineFilter(this);
progress->RegisterInternalFilter(m_WarpFilter, 1.f);
m_WarpFilter->GraftOutput(this->GetOutput());
m_WarpFilter->UpdateOutputData(m_WarpFilter->GetOutput());
this->GraftOutput(m_WarpFilter->GetOutput());
}
/**
*
*/
template <class TInputImage, class TOutputImage, class TInterpolatorPrecisionType>
void
StreamingResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType>
::GenerateOutputInformation()
{
// check the output spacing of the displacement field
if(this->GetDisplacementFieldSpacing()== itk::NumericTraits<SpacingType>::ZeroValue())
{
this->SetDisplacementFieldSpacing(2.*this->GetOutputSpacing());
}
// Retrieve output largest region
SizeType largestSize = this->GetOutputSize();
// Set up displacement field filter
SizeType displacementFieldLargestSize;
for(unsigned int dim = 0; dim < InputImageType::ImageDimension; ++dim)
{
// vcl_ceil to avoid numerical problems due to division of
// spacings
// + 1 : We need to enlarge the displacement field size cause
// itk::WarpImageFilter::EvaluateDisplacementAtPhysicalPoint needs
// 4 neighbors and in the edges we can need 1 neighbor pixel
// outside the field
displacementFieldLargestSize[dim] = static_cast<unsigned int>(
vcl_ceil( largestSize[dim]*
vcl_abs(this->GetOutputSpacing()[dim] /
this->GetDisplacementFieldSpacing()[dim]))) + 1;
}
m_DisplacementFilter->SetOutputSize(displacementFieldLargestSize);
m_DisplacementFilter->SetOutputIndex(this->GetOutputStartIndex());
m_WarpFilter->SetInput(this->GetInput());
m_WarpFilter->GraftOutput(this->GetOutput());
m_WarpFilter->UpdateOutputInformation();
this->GraftOutput(m_WarpFilter->GetOutput());
}
template <class TInputImage, class TOutputImage, class TInterpolatorPrecisionType>
void
StreamingResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType>
::PropagateRequestedRegion(itk::DataObject *output)
{
if (this->m_Updating) return;
m_WarpFilter->GetOutput()->SetRequestedRegion(output);
m_WarpFilter->GetOutput()->PropagateRequestedRegion();
}
/**
* Method used to copy the parameters of the input image
*
*/
template <class TInputImage, class TOutputImage, class TInterpolatorPrecisionType>
void
StreamingResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType>
::SetOutputParametersFromImage(const ImageBaseType * image)
{
this->SetOutputOrigin ( image->GetOrigin() );
this->SetOutputSpacing ( internal::GetSignedSpacing( image ) );
this->SetOutputStartIndex ( image->GetLargestPossibleRegion().GetIndex() );
this->SetOutputSize ( image->GetLargestPossibleRegion().GetSize() );
}
template <class TInputImage, class TOutputImage, class TInterpolatorPrecisionType>
void
StreamingResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType>
::SetDisplacementFieldSpacing( SpacingType outputSpacing )
{
m_SignedOutputSpacing = outputSpacing;
typename TInputImage::DirectionType direction = this->m_DisplacementFilter->GetOutputDirection();
for(unsigned int i = 0; i < TInputImage::ImageDimension; ++i)
{
if ( outputSpacing[i] < 0 )
{
if ( direction[i][i] > 0 )
{
for(unsigned int j = 0; j < TInputImage::ImageDimension; ++j)
{
direction[j][i] = - direction[j][i];
}
}
outputSpacing[i] = - outputSpacing[i];
}
}
this->m_DisplacementFilter->SetOutputSpacing( outputSpacing );
this->m_DisplacementFilter->SetOutputDirection( direction );
this->Modified();
}
template <class TInputImage, class TOutputImage, class TInterpolatorPrecisionType>
void
StreamingResampleImageFilter<TInputImage, TOutputImage, TInterpolatorPrecisionType>
::PrintSelf(std::ostream& os, itk::Indent indent) const
{
Superclass::PrintSelf(os, indent);
os << indent << "OutputOrigin: " << this->GetOutputOrigin() << std::endl;
os << indent << "OutputSpacing: " << this->GetOutputSpacing() << std::endl;
os << indent << "OutputStartIndex: " << this->GetOutputStartIndex() << std::endl;
os << indent << "OutputSize: " << this->GetOutputSize() << std::endl;
}
}
#endif
|
