版权声明:本文为博主原创文章,转载请注明出处,谢谢 https://blog.csdn.net/rabbitbride/article/details/82415260
统计像素点数
#include "itkImage.h"
#include "itkImageFileReader.h"
#include "itkImageRegionIterator.h"
#include <itkImageToVTKImageFilter.h>
#include "vtkVersion.h"
#include "vtkImageViewer.h"
//#include "vtkImageMapper3D.h"
#include "vtkRenderWindowInteractor.h"
#include "vtkSmartPointer.h"
#include "vtkImageActor.h"
#include "vtkInteractorStyleImage.h"
#include "vtkRenderer.h"
int main(int argc, char*argv[])
{
typedef itk::Image<unsigned char, 2> ImageType;
typedef itk::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName("D:\\se6\\bmp3\\IM0.bmp");
reader->Update();
ImageType::Pointer image = reader->GetOutput();
ImageType::SizeType regionSize;
regionSize[0] = reader->GetOutput()->GetLargestPossibleRegion().GetSize()[0];
regionSize[1] = reader->GetOutput()->GetLargestPossibleRegion().GetSize()[1];
ImageType::IndexType regionIndex;
regionIndex[0] = 0;
regionIndex[1] = 0;
ImageType::RegionType region;
region.SetSize(regionSize);
region.SetIndex(regionIndex);
itk::ImageRegionIterator<ImageType> imageIterator(image,region);
int i = 0;
int j = 0;
while(!imageIterator.IsAtEnd())
{
// Get the value of the current pixel
unsigned char val = imageIterator.Get();
//std::cout << (int)val << std::endl;
// Set the current pixel to white
//imageIterator.Set(255);
++imageIterator;
//-----------------------------------
if ((int)val>150)
{
i++;
imageIterator.Set(0);
}
if ((int)val>100)
{
j++;
}
//std::cout << imageIterator << std::endl;
}
std::cout << i << std::endl;
std::cout << j-i << std::endl;
// Visualize
typedef itk::ImageToVTKImageFilter<ImageType> ConnectorType;
ConnectorType::Pointer connector = ConnectorType::New();
connector->SetInput(image);
vtkSmartPointer<vtkImageActor> actor =
vtkSmartPointer<vtkImageActor>::New();
actor->SetInput(connector->GetOutput());
vtkSmartPointer<vtkRenderWindow> renderWindow =
vtkSmartPointer<vtkRenderWindow>::New();
vtkSmartPointer<vtkRenderWindowInteractor> interactor =
vtkSmartPointer<vtkRenderWindowInteractor>::New();
interactor->SetRenderWindow(renderWindow);
vtkSmartPointer<vtkRenderer> renderer =
vtkSmartPointer<vtkRenderer>::New();
renderWindow->AddRenderer(renderer);
renderer->AddActor(actor);
renderer->ResetCamera();
renderWindow->Render();
vtkSmartPointer<vtkInteractorStyleImage> style =
vtkSmartPointer<vtkInteractorStyleImage>::New();
interactor->SetInteractorStyle(style);
interactor->Start();
return EXIT_SUCCESS;
}
}