Difference between revisions of "ITK/Examples/Visualization/QuickViewDemo"

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m (QuickViewDemo.cxx)
(Deprecated content that is moved to sphinxed)
 
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This example demonstrates simple visualization capabilities provided by the QuickView class.
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{{warning|1=The media wiki content on this page is no longer maintainedThe examples presented on the https://itk.org/Wiki/*  pages likely require ITK version 4.13 or earlier releasesIn many cases, the examples on this page no longer conform to the best practices for modern ITK versions.}}
 
 
==QuickViewDemo.cxx==
 
<source lang="cpp">
 
#include "itkImage.h"
 
#include "itkImageFileReader.h"
 
#include "itkRescaleIntensityImageFilter.h"
 
 
 
#include "QuickView.h"
 
 
 
typedef itk::Image<unsigned char, 2> ImageType;
 
 
 
static void CreateImage(ImageType* const image);
 
 
 
int main(int argc, char *argv[])
 
{
 
  ImageType::Pointer image;
 
 
 
  if(argc < 2)
 
    {
 
    //std::cerr << "Required: filename" << std::endl;
 
    //return EXIT_FAILURE;
 
    image = ImageType::New();
 
    CreateImage(image);
 
    }
 
  else
 
  {
 
    typedef itk::ImageFileReader<ImageType> ReaderType;
 
    ReaderType::Pointer reader = ReaderType::New();
 
    reader->SetFileName(argv[1]);
 
    image = reader->GetOutput();
 
  }
 
 
 
  typedef itk::RescaleIntensityImageFilter< ImageType, ImageType > RescaleFilterType;
 
  RescaleFilterType::Pointer rescaleFilter = RescaleFilterType::New();
 
  rescaleFilter->SetInput(image);
 
  rescaleFilter->SetOutputMinimum(0);
 
  rescaleFilter->SetOutputMaximum(255);
 
  rescaleFilter->Update();
 
 
 
  QuickView viewer;
 
  viewer.AddImage(image.GetPointer());
 
  viewer.AddImage(rescaleFilter->GetOutput());
 
  viewer.Visualize();
 
 
 
  return EXIT_SUCCESS;
 
}
 
 
 
void CreateImage(ImageType* const image)
 
{
 
  // Create an image with 2 connected components
 
   ImageType::IndexType corner = {{0,0}};
 
 
 
  ImageType::SizeType size;
 
  unsigned int NumRows = 200;
 
  unsigned int NumCols = 300;
 
  size[0] = NumRows;
 
  size[1] = NumCols;
 
 
 
  ImageType::RegionType region(corner, size);
 
 
 
  image->SetRegions(region);
 
  image->Allocate();
 
 
 
  // Make a square
 
  for(unsigned int r = 40; r < 100; r++)
 
    {
 
    for(unsigned int c = 40; c < 100; c++)
 
      {
 
      ImageType::IndexType pixelIndex;
 
      pixelIndex[0] = r;
 
      pixelIndex[1] = c;
 
 
 
      image->SetPixel(pixelIndex, 15);
 
      }
 
    }
 
}
 
 
 
</source>
 
 
 
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Latest revision as of 19:47, 7 June 2019

Warning: 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.