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
|
/*=========================================================================
*
* 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 "itkForwardFFTImageFilter.h"
#include "itkInverseFFTImageFilter.h"
#include "itkTestingMacros.h"
#include "itkObjectFactoryBase.h"
#include "itkVnlComplexToComplexFFTImageFilter.h"
#include "itkVnlForwardFFTImageFilter.h"
#include "itkVnlInverseFFTImageFilter.h"
template <typename TPixel, unsigned int VDimension>
int
transformImage(const char * inputImageFileName, const char * outputImageFileName)
{
using RealPixelType = TPixel;
using ComplexPixelType = std::complex<RealPixelType>;
const unsigned int Dimension = VDimension;
using RealImageType = itk::Image<RealPixelType, Dimension>;
using ComplexImageType = itk::Image<ComplexPixelType, Dimension>;
using ReaderType = itk::ImageFileReader<RealImageType>;
auto reader = ReaderType::New();
reader->SetFileName(inputImageFileName);
using ForwardFilterType = itk::VnlForwardFFTImageFilter<RealImageType, ComplexImageType>;
auto forwardFilter = ForwardFilterType::New();
forwardFilter->SetInput(reader->GetOutput());
using ComplexFilterType = itk::VnlComplexToComplexFFTImageFilter<ComplexImageType>;
auto inverseComplexFilter = ComplexFilterType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(
inverseComplexFilter, VnlComplexToComplexFFTImageFilter, ComplexToComplexFFTImageFilter);
inverseComplexFilter->SetInput(forwardFilter->GetOutput());
inverseComplexFilter->SetTransformDirection(ComplexFilterType::TransformDirectionEnum::INVERSE);
auto forwardComplexFilter = ComplexFilterType::New();
forwardComplexFilter->SetInput(inverseComplexFilter->GetOutput());
forwardComplexFilter->SetTransformDirection(ComplexFilterType::TransformDirectionEnum::FORWARD);
using InverseFilterType = itk::VnlInverseFFTImageFilter<ComplexImageType, RealImageType>;
auto inverseFilter = InverseFilterType::New();
inverseFilter->SetInput(forwardComplexFilter->GetOutput());
using WriterType = itk::ImageFileWriter<RealImageType>;
auto writer = WriterType::New();
writer->SetFileName(outputImageFileName);
writer->SetInput(inverseFilter->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
return EXIT_SUCCESS;
}
int
itkVnlComplexToComplexFFTImageFilterTest(int argc, char * argv[])
{
if (argc < 4)
{
std::cerr << "Missing Parameters." << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " InputImage OutputImage <float|double>"
<< std::endl;
return EXIT_FAILURE;
}
const char * inputImageFileName = argv[1];
const char * outputImageFileName = argv[2];
const std::string pixelTypeString(argv[3]);
itk::ImageIOBase::Pointer imageIO =
itk::ImageIOFactory::CreateImageIO(inputImageFileName, itk::ImageIOFactory::IOFileModeEnum::ReadMode);
imageIO->SetFileName(inputImageFileName);
imageIO->ReadImageInformation();
const unsigned int dimension = imageIO->GetNumberOfDimensions();
if (pixelTypeString.compare("float") == 0)
{
switch (dimension)
{
case 2:
return transformImage<float, 2>(inputImageFileName, outputImageFileName);
case 3:
return transformImage<float, 3>(inputImageFileName, outputImageFileName);
default:
std::cerr << "Unknown image dimension." << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
else if (pixelTypeString.compare("double") == 0)
{
switch (dimension)
{
case 2:
return transformImage<double, 2>(inputImageFileName, outputImageFileName);
case 3:
return transformImage<double, 3>(inputImageFileName, outputImageFileName);
default:
std::cerr << "Unknown image dimension." << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
else
{
std::cerr << "Unknown pixel type string." << std::endl;
return EXIT_FAILURE;
}
return EXIT_FAILURE;
}
|
