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
|
/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://www.apache.org/licenses/LICENSE-2.0.txt
*
* 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.
*
*=========================================================================*/
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkBinaryImageToLevelSetImageAdaptor.h"
#include "itkTestingMacros.h"
int
itkBinaryImageToWhitakerSparseLevelSetAdaptorTest(int argc, char * argv[])
{
if (argc < 4)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage:" << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << " inputFilename outputFilename statusFilename" << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int Dimension = 2;
using InputPixelType = unsigned char;
using OutputPixelType = double;
using InputImageType = itk::Image<InputPixelType, Dimension>;
using InputReaderType = itk::ImageFileReader<InputImageType>;
auto reader = InputReaderType::New();
reader->SetFileName(argv[1]);
try
{
reader->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cout << err << std::endl;
return EXIT_FAILURE;
}
InputImageType::Pointer input = reader->GetOutput();
std::cout << "Input image read" << std::endl;
using LevelSetType = itk::WhitakerSparseLevelSetImage<OutputPixelType, Dimension>;
using BinaryToSparseAdaptorType = itk::BinaryImageToLevelSetImageAdaptor<InputImageType, LevelSetType>;
auto adaptor = BinaryToSparseAdaptorType::New();
adaptor->SetInputImage(input);
adaptor->Initialize();
std::cout << "Finished converting to sparse format" << std::endl;
using LayerIdType = LevelSetType::LayerIdType;
LevelSetType::Pointer sparseLevelSet = adaptor->GetModifiableLevelSet();
using OutputImageType = itk::Image<OutputPixelType, Dimension>;
auto output = OutputImageType::New();
output->SetRegions(input->GetLargestPossibleRegion());
output->CopyInformation(input);
output->Allocate();
output->FillBuffer(0.0);
using StatusImageType = itk::Image<signed char, Dimension>;
auto statusImage = StatusImageType::New();
statusImage->SetRegions(input->GetLargestPossibleRegion());
statusImage->CopyInformation(input);
statusImage->Allocate();
statusImage->FillBuffer(0);
using OutputIteratorType = itk::ImageRegionIteratorWithIndex<OutputImageType>;
OutputIteratorType oIt(output, output->GetLargestPossibleRegion());
oIt.GoToBegin();
using StatusIteratorType = itk::ImageRegionIteratorWithIndex<StatusImageType>;
StatusIteratorType sIt(statusImage, statusImage->GetLargestPossibleRegion());
sIt.GoToBegin();
StatusImageType::IndexType idx;
while (!oIt.IsAtEnd())
{
idx = oIt.GetIndex();
oIt.Set(sparseLevelSet->Evaluate(idx));
sIt.Set(sparseLevelSet->Status(idx));
++oIt;
++sIt;
}
using OutputWriterType = itk::ImageFileWriter<OutputImageType>;
auto outputWriter = OutputWriterType::New();
outputWriter->SetFileName(argv[2]);
outputWriter->SetInput(output);
try
{
outputWriter->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cout << err << std::endl;
return EXIT_FAILURE;
}
using StatusWriterType = itk::ImageFileWriter<StatusImageType>;
auto statusWriter = StatusWriterType::New();
statusWriter->SetFileName(argv[3]);
statusWriter->SetInput(statusImage);
try
{
statusWriter->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cout << err << std::endl;
}
for (LayerIdType lyr = sparseLevelSet->MinusTwoLayer(); lyr <= sparseLevelSet->PlusTwoLayer(); ++lyr)
{
LevelSetType::LayerType layer = sparseLevelSet->GetLayer(lyr);
auto lIt = layer.begin();
std::cout << "*** " << static_cast<int>(lyr) << " ***" << std::endl;
while (lIt != layer.end())
{
std::cout << lIt->first << ' ' << lIt->second << std::endl;
++lIt;
}
std::cout << std::endl;
}
using LabelObjectType = itk::LabelObject<unsigned long, 2>;
using LabelObjectPointer = LabelObjectType::Pointer;
LabelObjectPointer labelObject = LabelObjectType::New();
LabelObjectPointer labelObjectSrc = sparseLevelSet->GetAsLabelObject<unsigned long>();
labelObject->CopyAllFrom<LabelObjectType>(labelObjectSrc);
labelObject->SetLabel(sparseLevelSet->PlusOneLayer());
labelObject->Optimize();
std::cout << labelObject->Size() << std::endl;
return EXIT_SUCCESS;
}
|
