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
|
/*=========================================================================
*
* Copyright NumFOCUS
*
* 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
*
* https://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.
*
*=========================================================================*/
// The example takes an image (say MRA image), computes the vesselness measure
// of the image using the HessianRecursiveGaussianImageFilter and the
// Hessian3DToVesselnessMeasureImageFilter. The goal is to detect bright
// tubular structures in the image.
#include "itkHessian3DToVesselnessMeasureImageFilter.h"
#include "itkHessianRecursiveGaussianImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
int
main(int argc, char * argv[])
{
if (argc < 3)
{
std::cerr << "Usage: inputImage outputImage [sigma] [alpha_1] [alpha_2]"
<< std::endl;
}
constexpr unsigned int Dimension = 3;
using InputPixelType = double;
using OutputPixelType = float;
using InputImageType = itk::Image<InputPixelType, Dimension>;
using OutputImageType = itk::Image<OutputPixelType, Dimension>;
using HessianFilterType =
itk::HessianRecursiveGaussianImageFilter<InputImageType>;
using VesselnessMeasureFilterType =
itk::Hessian3DToVesselnessMeasureImageFilter<OutputPixelType>;
using ReaderType = itk::ImageFileReader<InputImageType>;
using WriterType = itk::ImageFileWriter<OutputImageType>;
auto hessianFilter = HessianFilterType::New();
auto vesselnessFilter = VesselnessMeasureFilterType::New();
auto reader = ReaderType::New();
auto writer = WriterType::New();
reader->SetFileName(argv[1]);
hessianFilter->SetInput(reader->GetOutput());
if (argc >= 4)
{
hessianFilter->SetSigma(static_cast<double>(std::stod(argv[3])));
}
vesselnessFilter->SetInput(hessianFilter->GetOutput());
writer->SetInput(vesselnessFilter->GetOutput());
writer->SetFileName(argv[2]);
if (argc >= 5)
{
vesselnessFilter->SetAlpha1(static_cast<double>(std::stod(argv[4])));
}
if (argc >= 6)
{
vesselnessFilter->SetAlpha2(static_cast<double>(std::stod(argv[5])));
}
writer->Update();
return EXIT_SUCCESS;
}
|
