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
|
/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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.
*
*=========================================================================*/
// Test itk::ShapedFloodFilledImageFunctionConditionalConstIterator on a 2D
// image using the fully connected option.
#include "itkImageFileReader.h"
#include "itkBinaryThresholdImageFunction.h"
#include "itkShapedFloodFilledImageFunctionConditionalConstIterator.h"
int itkShapedFloodFilledImageFunctionConditionalConstIteratorTest1(int argc, char *argv [] )
{
if( argc < 2 )
{
std::cerr << "Error: missing arguments" << std::endl;
std::cerr << argv[0] << " filename " << std::endl;
return EXIT_FAILURE;
}
try
{
const unsigned int ImageDimension = 2;
typedef unsigned char PixelType;
typedef itk::Image<PixelType, ImageDimension> ImageType;
typedef ImageType::RegionType RegionType;
typedef ImageType::IndexType IndexType;
typedef itk::BinaryThresholdImageFunction<ImageType> FunctionType;
typedef itk::ShapedFloodFilledImageFunctionConditionalConstIterator<
ImageType, FunctionType> ShapedFloodFilledIteratorType;
typedef itk::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
reader->Update();
IndexType index;
index[0] = 29;
index[1] = 47;
std::vector<IndexType> seedList;
seedList.push_back(index);
RegionType region = reader->GetOutput()->GetBufferedRegion();
FunctionType::Pointer function = FunctionType::New();
function->SetInputImage ( reader->GetOutput() );
function->ThresholdAbove ( 1 ); // >= 1
ShapedFloodFilledIteratorType shapedFloodIt(
reader->GetOutput(), function, seedList);
shapedFloodIt.SetFullyConnected(true); // 8-connected, default
//
// get the seeds and display them.
const ShapedFloodFilledIteratorType::SeedsContainerType &seeds(shapedFloodIt.GetSeeds());
std::cout << "Iterator seeds";
for(ShapedFloodFilledIteratorType::SeedsContainerType::const_iterator it =
seeds.begin(); it != seeds.end(); it++)
{
std::cout << " " << (*it);
}
std::cout << std::endl;
ImageType::Pointer visitedImage = ImageType::New();
visitedImage->SetRegions(region);
visitedImage->Allocate(true); // initialize
// buffer to zero
for (; !shapedFloodIt.IsAtEnd(); ++shapedFloodIt)
{
visitedImage->SetPixel( shapedFloodIt.GetIndex(), 255);
}
typedef itk::ImageRegionConstIterator<ImageType> ConstIteratorType;
ConstIteratorType inIt(reader->GetOutput(), region);
ConstIteratorType outIt(visitedImage, region);
for (; !inIt.IsAtEnd(); ++inIt, ++outIt)
{
if (inIt.Get() != outIt.Get())
{
return EXIT_FAILURE;
}
}
}
catch (itk::ExceptionObject& e)
{
e.Print(std::cerr);
return EXIT_FAILURE;
}
catch (...)
{
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
|
