|
|
| (2 intermediate revisions by one other user not shown) |
| Line 1: |
Line 1: |
| <div class="floatcenter">[[File:ITK_Examples_Baseline_ImageProcessing_TestNormalizeImageFilter.png]]</div>
| | {{warning|1=The media wiki content on this page is no longer maintained. The examples presented on the https://itk.org/Wiki/* pages likely require ITK version 4.13 or earlier releases. In many cases, the examples on this page no longer conform to the best practices for modern ITK versions. |
| Normalize an image by setting its mean to 0 and variance to 1.
| | }} |
| ==NormalizeImageFilter.cxx== | |
| <source lang="cpp">
| |
| #include "itkImage.h"
| |
| #include "itkImageFileReader.h"
| |
| #include "itkNormalizeImageFilter.h"
| |
| #include "itkStatisticsImageFilter.h"
| |
| | |
| #include "QuickView.h"
| |
| | |
| #include <iomanip>
| |
| | |
| int main(int argc, char *argv[])
| |
| {
| |
| if(argc < 2)
| |
| {
| |
| std::cerr << "Usage: " << argv[0] << " filename" << std::endl;
| |
| return EXIT_FAILURE;
| |
| }
| |
| | |
| typedef itk::Image<double, 2> FloatImageType;
| |
| | |
| typedef itk::ImageFileReader<FloatImageType>
| |
| ReaderType;
| |
| ReaderType::Pointer reader = ReaderType::New();
| |
| reader->SetFileName(argv[1]);
| |
| | |
| typedef itk::NormalizeImageFilter< FloatImageType, FloatImageType >
| |
| NormalizeFilterType;
| |
| NormalizeFilterType::Pointer normalizeFilter = NormalizeFilterType::New();
| |
| normalizeFilter->SetInput(reader->GetOutput());
| |
| | |
| typedef itk::StatisticsImageFilter< FloatImageType >
| |
| StatisticsFilterType;
| |
| StatisticsFilterType::Pointer statistics1 = StatisticsFilterType::New();
| |
| statistics1->SetInput(reader->GetOutput());
| |
| | |
| StatisticsFilterType::Pointer statistics2 = StatisticsFilterType::New();
| |
| statistics2->SetInput(normalizeFilter->GetOutput());
| |
| | |
| QuickView viewer;
| |
| | |
| std::stringstream desc1;
| |
| statistics1->Update();
| |
| desc1 << itksys::SystemTools::GetFilenameName(argv[1])
| |
| << "\nMean: " << statistics1->GetMean()
| |
| << " Variance: " << statistics1->GetVariance();
| |
| viewer.AddImage(
| |
| reader->GetOutput(),
| |
| true,
| |
| desc1.str());
| |
| | |
| std::stringstream desc2;
| |
| statistics2->Update();
| |
| desc2 << "Normalize"
| |
| << "\nMean: "
| |
| << std::fixed << std::setprecision (2) << statistics2->GetMean()
| |
| << " Variance: " << statistics2->GetVariance();
| |
| viewer.AddImage(
| |
| normalizeFilter->GetOutput(),
| |
| true,
| |
| desc2.str());
| |
| | |
| viewer.Visualize(); | |
| | |
| return EXIT_SUCCESS;
| |
| } | |
| </source>
| |
| | |
| ==CMakeLists.txt==
| |
| <source lang="cmake">
| |
| cmake_minimum_required(VERSION 2.6)
| |
| | |
| PROJECT(NormalizeImageFilter)
| |
| | |
| include_directories(/home/doriad/src/ITK/Wrapping/WrapITK/ExternalProjects/ItkVtkGlue/src/)
| |
| | |
| FIND_PACKAGE(VTK REQUIRED)
| |
| INCLUDE(${VTK_USE_FILE})
| |
| | |
| FIND_PACKAGE(ITK REQUIRED)
| |
| INCLUDE(${ITK_USE_FILE})
| |
| | |
| ADD_EXECUTABLE(NormalizeImageFilter NormalizeImageFilter.cxx)
| |
| TARGET_LINK_LIBRARIES(NormalizeImageFilter
| |
| vtkHybrid
| |
| ITKIO ITKBasicFilters ITKCommon
| |
| )
| |
| | |
| | |
| </source>
| |
