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
|
/*=========================================================================
*
* 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 <fstream>
#include "itkMatrixIndexSelectionImageFilter.h"
#include "itkImageFileWriter.h"
#include "itkTestingMacros.h"
int
itkMatrixIndexSelectionImageFilterTest(int argc, char * argv[])
{
if (argc < 1)
{
std::cerr << "Missing Parameters " << std::endl;
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv);
std::cerr << " outputImage" << std::endl;
return EXIT_FAILURE;
}
// Define the dimension of the images
constexpr unsigned int Dimension = 2;
// Declare the pixel types of the images
using PixelType = itk::Matrix<unsigned short, Dimension, Dimension>;
using OutputPixelType = unsigned char;
// Declare the types of the images
using InputImageType = itk::Image<PixelType, Dimension>;
using OutputImageType = itk::Image<OutputPixelType, Dimension>;
// Create a matrix image
auto image = InputImageType::New();
InputImageType::RegionType region;
InputImageType::SizeType size;
size.Fill(100);
InputImageType::IndexType index;
index.Fill(0);
region.SetSize(size);
region.SetIndex(index);
image->SetRegions(region);
image->Allocate();
size = region.GetSize();
index = region.GetIndex();
unsigned int width = size[0];
unsigned int height = size[1];
size[0] = width;
size[1] = height / 2;
// Populate upper half of image
index[0] = 0;
index[1] = 0;
region.SetSize(size);
region.SetIndex(index);
{
PixelType pixel;
pixel[0][0] = 128;
pixel[0][1] = 192;
pixel[1][0] = 0;
pixel[1][1] = 64;
itk::ImageRegionIterator<InputImageType> it(image, region);
it.GoToBegin();
while (!it.IsAtEnd())
{
it.Set(pixel);
++it;
}
}
// Populate lower half of image
index[0] = 0;
index[1] = height / 2;
region.SetSize(size);
region.SetIndex(index);
{
PixelType pixel;
pixel[0][0] = 64;
pixel[0][1] = 16;
pixel[1][0] = 255;
pixel[1][1] = 192;
itk::ImageRegionIterator<InputImageType> it(image, region);
it.GoToBegin();
while (!it.IsAtEnd())
{
it.Set(pixel);
++it;
}
}
using SelectionFilterType = itk::MatrixIndexSelectionImageFilter<InputImageType, OutputImageType>;
auto filter = SelectionFilterType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(filter, MatrixIndexSelectionImageFilter, UnaryFunctorImageFilter);
filter->SetInput(image);
unsigned int indexA = 0;
unsigned int indexB = 1;
filter->SetIndices(indexA, indexB);
unsigned int testIndexA;
unsigned int testIndexB;
filter->GetIndices(testIndexA, testIndexB);
if (indexA != testIndexA || indexB != testIndexB)
{
std::cerr << "Error " << std::endl;
std::cerr << " Expected indices: (" << indexA << ", " << indexB << ')' << std::endl;
std::cerr << " differ from ";
std::cerr << " obtained indices: (" << testIndexA << ", " << testIndexB << ')' << std::endl;
return EXIT_FAILURE;
}
filter->SetFunctor(filter->GetFunctor());
using WriterType = itk::ImageFileWriter<OutputImageType>;
auto writer = WriterType::New();
writer->SetFileName(argv[1]);
writer->SetInput(filter->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
return EXIT_SUCCESS;
}
|
