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
|
/*
* Copyright (C) 1999-2011 Insight Software Consortium
* Copyright (C) 2005-2017 Centre National d'Etudes Spatiales (CNES)
*
* This file is part of Orfeo Toolbox
*
* https://www.orfeo-toolbox.org/
*
* 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
*
* 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.
*/
// Software Guide : BeginLatex
//
// This example illustrates how to use the \doxygen{itk}{PolyLineParametricPath}.
// This class will typically be used for representing in a concise way the
// output of an image segmentation algorithm in 2D. See section
// \ref{sec:Alignments} for an example in the context of alignment
// detection. The
// \code{PolyLineParametricPath} however could also be used for representing
// any open or close curve in N-Dimensions as a linear piece-wise approximation.
//
//
// First, the header file of the \code{PolyLineParametricPath} class must be included.
//
// Software Guide : EndLatex
#include "otbImage.h"
#include "otbImageFileReader.h"
// Software Guide : BeginCodeSnippet
#include "itkPolyLineParametricPath.h"
// Software Guide : EndCodeSnippet
int main(int argc, char * argv[])
{
if (argc < 2)
{
std::cerr << "Missing arguments" << std::endl;
std::cerr << "Usage: PolyLineParametricPath inputImageFileName" <<
std::endl;
return -1;
}
// Software Guide : BeginLatex
//
// The path is instantiated over the dimension of the image.
// Software Guide : EndLatex
// Software Guide : BeginCodeSnippet
const unsigned int Dimension = 2;
typedef otb::Image<unsigned char, Dimension> ImageType;
typedef itk::PolyLineParametricPath<Dimension> PathType;
// Software Guide : EndCodeSnippet
typedef otb::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(argv[1]);
try
{
reader->Update();
}
catch (itk::ExceptionObject& excp)
{
std::cout << "Problem reading the input image " << std::endl;
std::cout << excp << std::endl;
return -1;
}
// Software Guide : BeginCodeSnippet
ImageType::ConstPointer image = reader->GetOutput();
PathType::Pointer path = PathType::New();
path->Initialize();
typedef PathType::ContinuousIndexType ContinuousIndexType;
ContinuousIndexType cindex;
typedef ImageType::PointType ImagePointType;
ImagePointType origin = image->GetOrigin();
ImageType::SpacingType spacing = image->GetSignedSpacing();
ImageType::SizeType size = image->GetBufferedRegion().GetSize();
ImagePointType point;
point[0] = origin[0] + spacing[0] * size[0];
point[1] = origin[1] + spacing[1] * size[1];
image->TransformPhysicalPointToContinuousIndex(origin, cindex);
path->AddVertex(cindex);
image->TransformPhysicalPointToContinuousIndex(point, cindex);
path->AddVertex(cindex);
// Software Guide : EndCodeSnippet
return EXIT_SUCCESS;
}
|
