ITK  5.0.0
Insight Segmentation and Registration Toolkit
WikiExamples/EdgesAndGradients/BinaryContourImageFilter.cxx
#include "itkImage.h"
#include "QuickView.h"
using ImageType = itk::Image<unsigned char, 2>;
static void CreateImage(ImageType::Pointer image);
int main(int, char *[])
{
ImageType::Pointer image = ImageType::New();
CreateImage(image);
using binaryContourImageFilterType = itk::BinaryContourImageFilter <ImageType, ImageType >;
binaryContourImageFilterType::Pointer binaryContourFilter
= binaryContourImageFilterType::New ();
binaryContourFilter->SetInput(image);
QuickView viewer;
viewer.AddImage<ImageType>(image);
viewer.AddImage<ImageType>(binaryContourFilter->GetOutput());
viewer.Visualize();
return EXIT_SUCCESS;
}
void CreateImage(ImageType::Pointer image)
{
// Create an image with 2 connected components
start[0] = 0;
start[1] = 0;
unsigned int NumRows = 200;
unsigned int NumCols = 300;
size[0] = NumRows;
size[1] = NumCols;
region.SetSize(size);
region.SetIndex(start);
image->SetRegions(region);
image->Allocate();
// Make a square
for(unsigned int r = 20; r < 80; r++)
{
for(unsigned int c = 30; c < 100; c++)
{
pixelIndex[0] = r;
pixelIndex[1] = c;
image->SetPixel(pixelIndex, 255);
}
}
// Make another square
for(unsigned int r = 100; r < 130; r++)
{
for(unsigned int c = 115; c < 160; c++)
{
pixelIndex[0] = r;
pixelIndex[1] = c;
image->SetPixel(pixelIndex, 255);
}
}
}