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
|
/*=========================================================================
*
* 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 "itkShanbhagThresholdImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkTestingMacros.h"
int
itkShanbhagThresholdImageFilterTest(int argc, char * argv[])
{
if (argc != 6)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage:" << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << " inputImageFile"
<< " outputImageFile"
<< " numberOfHistogramBins"
<< " autoMinimumMaximum"
<< " expectedThreshold" << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int Dimension = 2;
using InputPixelType = short;
using OutputPixelType = unsigned char;
using InputImageType = itk::Image<InputPixelType, Dimension>;
using OutputImageType = itk::Image<OutputPixelType, Dimension>;
using ReaderType = itk::ImageFileReader<InputImageType>;
auto reader = ReaderType::New();
reader->SetFileName(argv[1]);
ITK_TRY_EXPECT_NO_EXCEPTION(reader->Update());
using FilterType = itk::ShanbhagThresholdImageFilter<InputImageType, OutputImageType>;
auto filter = FilterType::New();
itk::SimpleFilterWatcher watcher(filter);
ITK_EXERCISE_BASIC_OBJECT_METHODS(filter, ShanbhagThresholdImageFilter, HistogramThresholdImageFilter);
auto insideValue = static_cast<FilterType::OutputPixelType>(255);
filter->SetInsideValue(insideValue);
ITK_TEST_SET_GET_VALUE(insideValue, filter->GetInsideValue());
auto outsideValue = static_cast<FilterType::OutputPixelType>(0);
filter->SetOutsideValue(outsideValue);
ITK_TEST_SET_GET_VALUE(outsideValue, filter->GetOutsideValue());
auto numberOfHistogramBins = static_cast<itk::SizeValueType>(std::stoi(argv[3]));
filter->SetNumberOfHistogramBins(numberOfHistogramBins);
ITK_TEST_SET_GET_VALUE(numberOfHistogramBins, filter->GetNumberOfHistogramBins());
auto autoMinimumMaximum = static_cast<bool>(std::stoi(argv[4]));
ITK_TEST_SET_GET_BOOLEAN(filter, AutoMinimumMaximum, autoMinimumMaximum);
// Test no histogram exception (no input set)
ITK_TRY_EXPECT_EXCEPTION(filter->Update());
filter->SetInput(reader->GetOutput());
// Test no calculator set exception
filter->SetCalculator(nullptr);
ITK_TRY_EXPECT_EXCEPTION(filter->Update());
FilterType::CalculatorType::Pointer calculator = FilterType::CalculatorType::New();
filter->SetCalculator(calculator);
ITK_TEST_SET_GET_VALUE(calculator, filter->GetCalculator());
ITK_TRY_EXPECT_NO_EXCEPTION(filter->Update());
// Regression test: compare computed threshold
auto expectedThreshold = static_cast<FilterType::InputPixelType>(std::stod(argv[5]));
FilterType::InputPixelType resultThreshold = filter->GetThreshold();
if (itk::Math::NotAlmostEquals(expectedThreshold, resultThreshold))
{
std::cerr << "Test failed!" << std::endl;
std::cerr << "Error in GetThreshold()" << std::endl;
std::cerr << "Expected: " << itk::NumericTraits<FilterType::InputPixelType>::PrintType(expectedThreshold)
<< ", but got: " << itk::NumericTraits<FilterType::InputPixelType>::PrintType(resultThreshold)
<< std::endl;
return EXIT_FAILURE;
}
// Write output image
using WriterType = itk::ImageFileWriter<OutputImageType>;
auto writer = WriterType::New();
writer->SetInput(filter->GetOutput());
writer->SetFileName(argv[2]);
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
std::cout << "Test finished" << std::endl;
return EXIT_SUCCESS;
}
|
