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
|
/*=========================================================================
*
* 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 "itkMeanSampleFilter.h"
#include "itkListSample.h"
int
itkMeanSampleFilterTest2(int, char *[])
{
std::cout << "MeanSampleFilter test \n \n";
bool pass = true;
std::string failureMeassage = "";
constexpr unsigned int MeasurementVectorSize = 2;
constexpr unsigned int numberOfMeasurementVectors = 2;
unsigned int counter;
using MeasurementVectorType = itk::FixedArray<int, MeasurementVectorSize>;
using SampleType = itk::Statistics::ListSample<MeasurementVectorType>;
auto sample = SampleType::New();
sample->SetMeasurementVectorSize(MeasurementVectorSize);
MeasurementVectorType measure;
counter = 0;
std::cout << "Input sample values " << std::endl;
while (counter < numberOfMeasurementVectors)
{
for (unsigned int i = 0; i < MeasurementVectorSize; ++i)
{
measure[i] = counter;
}
std::cout << counter << " : " << measure << std::endl;
sample->PushBack(measure);
counter++;
}
using FilterType = itk::Statistics::MeanSampleFilter<SampleType>;
auto filter = FilterType::New();
filter->SetInput(sample);
try
{
filter->Update();
}
catch (const itk::ExceptionObject & excp)
{
std::cerr << "Exception caught: " << excp << std::endl;
}
const FilterType::MeasurementVectorDecoratedType * decorator = filter->GetOutput();
FilterType::MeasurementVectorRealType meanOutput = decorator->Get();
FilterType::MeasurementVectorRealType expectedMean;
expectedMean[0] = 0.5;
expectedMean[1] = 0.5;
std::cout << meanOutput[0] << ' ' << expectedMean[0] << ' ' << meanOutput[1] << ' ' << expectedMean[1] << ' '
<< std::endl;
// FilterType::MeasurementVectorType::ValueType is an int in this case
FilterType::MeasurementVectorType::ValueType epsilon = 0;
if ((itk::Math::abs(meanOutput[0] - expectedMean[0]) > epsilon) ||
(itk::Math::abs(meanOutput[1] - expectedMean[1]) > epsilon))
{
pass = false;
failureMeassage = "The result is not what is expected";
}
if (!pass)
{
std::cout << "Test failed." << failureMeassage << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test passed." << std::endl;
return EXIT_SUCCESS;
}
|
