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
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
|
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: itkNarrowBandImageFilterBaseTest.cxx
Language: C++
Date: $Date$
Version: $Revision$
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 <iostream>
#include "itkImageFileWriter.h"
#include "itkNarrowBandImageFilterBase.h"
#include "itkCastImageFilter.h"
#include "itkCurvatureFlowFunction.h"
#include "itkRandomImageSource.h"
#include "itkAddImageFilter.h"
#include "itkRescaleIntensityImageFilter.h"
namespace itk
{
template <class TInputImageType, class TOutputImageType>
class NbTestClass: public NarrowBandImageFilterBase<TInputImageType, TOutputImageType>
{
public:
typedef NbTestClass Self;
typedef NarrowBandImageFilterBase<TInputImageType, TOutputImageType> Superclass;
typedef SmartPointer<Self> Pointer;
typedef SmartPointer<const Self> ConstPointer;
typedef TOutputImageType ImageType;
/** Standard method for creation through object factory. */
itkNewMacro(Self);
/** Run-time class information. */
itkTypeMacro(NbTestClass,NarrowBandImageFilterBase);
typedef CurvatureFlowFunction<TOutputImageType> FiniteFunctionType;
protected:
typename FiniteFunctionType::Pointer m_Function;
NbTestClass ()
{
m_Function=FiniteFunctionType::New();
this->SetDifferenceFunction(m_Function);
}
virtual bool Halt ()
{
if (this->GetElapsedIterations()==20) return true;
else return false;
}
virtual void CreateNarrowBand()
{
//Create a band
typename ImageType::SizeType sz= this->GetInput()->GetRequestedRegion().GetSize();
typename ImageType::IndexType tl= this->GetInput()->GetRequestedRegion().GetIndex();
typename Superclass::IndexType in;
for (in[0]=32+tl[0]; in[0]<tl[0]+(long int)(sz[0]); in[0]++)
{
for (in[1]=tl[1]+32; in[1]<tl[1]+(long int)(sz[1]);in[1]++)
{
this->InsertNarrowBandNode (in);
}
}
}
};
}
namespace
{
// simple signed distance function
template <typename TPoint>
double
SimpleSignedDistance( const TPoint & p )
{
TPoint center;
center.Fill( 32 );
double radius = 19.5;
double accum = 0.0;
for( unsigned int j = 0; j < TPoint::PointDimension; j++ )
{
accum += vnl_math_sqr( p[j] - center[j] );
}
accum = vcl_sqrt( accum );
return ( accum - radius );
}
}
int itkNarrowBandImageFilterBaseTest(int argc, char* argv[])
{
if(argc < 2)
{
std::cerr << "Usage: " << argv[0] << " OutputImage\n";
return EXIT_FAILURE;
}
typedef float PixelType;
typedef unsigned char WriterPixelType;
const unsigned int ImageDimension = 2;
typedef itk::Image<PixelType,ImageDimension> ImageType;
typedef itk::Image<WriterPixelType,ImageDimension> WriterImageType;
typedef itk::Point<double,ImageDimension> PointType;
ImageType::SizeType size = {{64,64}};
ImageType::IndexType index = {{0,0}};
ImageType::RegionType region;
region.SetSize( size );
region.SetIndex( index );
ImageType::Pointer inputImage = ImageType::New();
inputImage->SetLargestPossibleRegion( region );
inputImage->SetBufferedRegion( region );
inputImage->SetRequestedRegion( region );
inputImage->Allocate();
typedef itk::ImageRegionIteratorWithIndex<ImageType> Iterator;
Iterator iter( inputImage, region );
iter.GoToBegin();
while( !iter.IsAtEnd() )
{
PointType point;
inputImage->TransformIndexToPhysicalPoint( iter.GetIndex(), point );
iter.Set( SimpleSignedDistance( point ) );
++iter;
}
typedef itk::RandomImageSource<ImageType> RandomSourceType;
RandomSourceType::Pointer randomSource = RandomSourceType::New();
ImageType::SizeValueType tam[2];
tam[0]=64;
tam[1]=64;
randomSource->SetSize(tam);
randomSource->SetMin(-2);
randomSource->SetMax(2);
// For testing purposes we want random source to produce
// deterministic values. This is accompished by restricting the
// number of threads to 1.
randomSource->SetNumberOfThreads(1);
typedef itk::AddImageFilter<ImageType,ImageType,ImageType> AddFilterType;
AddFilterType::Pointer addFilter = AddFilterType::New();
addFilter->SetInput1(inputImage);
addFilter->SetInput2(randomSource->GetOutput());
typedef itk::NbTestClass <ImageType,ImageType> FilterType;
FilterType::Pointer filter = FilterType::New();
filter->SetInput(addFilter->GetOutput());
filter->Print(std::cout);
try
{
typedef itk::RescaleIntensityImageFilter<ImageType, WriterImageType> RescaleType;
RescaleType::Pointer rescale = RescaleType::New();
rescale->SetInput(filter->GetOutput());
rescale->SetOutputMinimum(0);
rescale->SetOutputMaximum(255);
typedef itk::ImageFileWriter<WriterImageType> WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetInput( rescale->GetOutput() );
writer->SetFileName( argv[1] );
writer->Write();
}
catch (itk::ExceptionObject &err)
{
(&err)->Print(std::cerr);
std::cout << "Test failed." << std::endl;
return EXIT_FAILURE;
}
std::cout << "Test Passed. " << std::endl;
return EXIT_SUCCESS;
}
|
