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
|
/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkOctreeTest.cxx,v $
Language: C++
Date: $Date: 2007-08-20 13:00:21 $
Version: $Revision: 1.6 $
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 "itkOctree.h"
#include "itkImage.h"
#include "itkExceptionObject.h"
#include "itkNumericTraits.h"
#include "itkImageRegionIterator.h"
#include "stdlib.h"
//#include "cstdio"
#include <time.h>
#include <math.h>
template <class TPixel,unsigned int TableSize>
class IdentityMap
{
public:
unsigned int Evaluate(const TPixel *pixel)
{
unsigned int pixval = static_cast<unsigned int>(*pixel);
return pixval < TableSize ? pixval : TableSize - 1;
}
};
int itkOctreeTest(int, char *[])
{
typedef itk::Image<unsigned int,3> ImageType;
const ImageType::SizeType imageSize = {{4,4,4}};
const ImageType::IndexType imageIndex = {{0,0,0}};
ImageType::RegionType region;
region.SetSize(imageSize);
region.SetIndex(imageIndex);
ImageType::Pointer img = ImageType::New();
img->SetLargestPossibleRegion(region);
img->SetBufferedRegion(region);
img->SetRequestedRegion(region);
img->Allocate();
srand( (unsigned)time( NULL) );
itk::ImageRegionIterator<ImageType> ri(img,region);
try
{
unsigned int counter = 0;
while(!ri.IsAtEnd())
{
unsigned int val = rand() % 16384;
if(counter && counter % 8 == 0)
std::cerr << val << std::endl;
else
std::cerr << val << " ";
counter++;
ri.Set(val);
++ri;
}
}
catch(itk::ExceptionObject & ex)
{
ex.Print(std::cerr);
return EXIT_FAILURE;
}
typedef itk::Octree<unsigned int,16384,IdentityMap<unsigned int,16384> > OctreeType;
OctreeType::Pointer octree = OctreeType::New();
octree->BuildFromImage(img);
ImageType::Pointer output = octree->GetImage();
itk::ImageRegionIterator<ImageType> ri2(output,region);
ri.GoToBegin();
IdentityMap<unsigned int,16384> id;
try
{
while(!ri.IsAtEnd() && !ri2.IsAtEnd())
{
unsigned int x = ri.Get();
unsigned int y = ri2.Get();
unsigned int mapped = id.Evaluate(&x);
std::cerr << "x = " <<
x << " mapped(x) " << mapped << " y = " << y << std::endl;
if(mapped != y)
{
std::cerr << "Error comparing Input and Output of Octree" << std::endl;
return -1;
}
++ri;
++ri2;
}
if(!ri.IsAtEnd() || !ri2.IsAtEnd())
{
std::cerr << "Error, inconsistent image sizes in Octree" << std::endl;
return EXIT_FAILURE;
}
}
catch(itk::ExceptionObject & ex)
{
ex.Print(std::cerr);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
|
