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
|
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkVotingBinaryIterativeHoleFillingImageFilterTest.cxx,v $
Language: C++
Date: $Date: 2007-01-29 14:42:11 $
Version: $Revision: 1.3 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include "itkImage.h"
#include "itkRandomImageSource.h"
#include "itkBinaryThresholdImageFilter.h"
#include "itkVotingBinaryIterativeHoleFillingImageFilter.h"
#include "itkTextOutput.h"
#include "itkImageRegionIterator.h"
int itkVotingBinaryIterativeHoleFillingImageFilterTest(int, char* [] )
{
// Comment the following if you want to use the itk text output window
itk::OutputWindow::SetInstance(itk::TextOutput::New());
typedef itk::Image<unsigned short,2> ImageType;
itk::RandomImageSource<ImageType>::Pointer random;
random = itk::RandomImageSource<ImageType>::New();
random->SetMin( 0 );
random->SetMax( 100 );
unsigned long randomSize[2];
randomSize[0] = randomSize[1] = 8;
random->SetSize(randomSize);
float spacing[2] = {0.7, 2.1};
random->SetSpacing( spacing );
float origin[2] = {15, 400};
random->SetOrigin( origin );
ImageType::PixelType foreground = 97; // prime numbers are good testers
ImageType::PixelType background = 29;
itk::BinaryThresholdImageFilter<ImageType,ImageType>::Pointer thresholder;
thresholder = itk::BinaryThresholdImageFilter<ImageType,ImageType>::New();
thresholder->SetInput( random->GetOutput() );
thresholder->SetLowerThreshold( 30 );
thresholder->SetUpperThreshold( 100 );
thresholder->SetInsideValue( foreground );
thresholder->SetOutsideValue( background );
// Create a voting image
itk::VotingBinaryIterativeHoleFillingImageFilter<ImageType>::Pointer voting;
voting = itk::VotingBinaryIterativeHoleFillingImageFilter<ImageType>::New();
voting->SetInput( thresholder->GetOutput());
voting->SetForegroundValue( foreground );
voting->SetBackgroundValue( background );
// define the neighborhood size used for the voting filter (5x5)
ImageType::SizeType neighRadius;
neighRadius[0] = 1;
neighRadius[1] = 1;
voting->SetRadius(neighRadius);
// Set the maximum number of times the filter should perform passes filling
// the border of holes and cavities.
voting->SetMaximumNumberOfIterations( 10 );
// Set the number of pixels over 50% that will tip the decision about
// switching a pixel.
voting->SetMajorityThreshold( 1 );
// run the algorithm
voting->Update();
itk::ImageRegionIterator<ImageType> it;
it = itk::ImageRegionIterator<ImageType>(random->GetOutput(),
random->GetOutput()->GetBufferedRegion());
std::cout << "Input image" << std::endl;
unsigned int i;
for (i=1; !it.IsAtEnd(); ++i, ++it)
{
std::cout << "\t" << it.Get();
if ((i % 8) == 0)
{
std::cout << std::endl;
}
}
it = itk::ImageRegionIterator<ImageType>(thresholder->GetOutput(),
thresholder->GetOutput()->GetBufferedRegion());
std::cout << "Binary image" << std::endl;
for (i=1; !it.IsAtEnd(); ++i, ++it)
{
std::cout << "\t" << it.Get();
if ((i % 8) == 0)
{
std::cout << std::endl;
}
}
std::cout << "Output image" << std::endl;
it = itk::ImageRegionIterator<ImageType>(voting->GetOutput(),
voting->GetOutput()->GetBufferedRegion());
for (i=1; !it.IsAtEnd(); ++i, ++it)
{
std::cout << "\t" << it.Get();
if ((i % 8) == 0)
{
std::cout << std::endl;
}
}
std::cout << "Number Of Pixels Changed = " << voting->GetNumberOfPixelsChanged() << std::endl;
voting->Print( std::cout );
return EXIT_SUCCESS;
}
|
