ITK  4.9.0
Insight Segmentation and Registration Toolkit
WikiExamples/Images/FlipImageFilter.cxx
#include "itkFixedArray.h"
#include "itkImage.h"
#include "itkRGBPixel.h"
#include "QuickView.h"
typedef itk::RGBPixel<unsigned char> PixelType;
typedef itk::Image<PixelType, 2> ImageType;
static void CreateImage(ImageType::Pointer image);
int main(int argc, char *argv[])
{
ImageType::Pointer image = ImageType::New();
std::stringstream desc;
flipAxes[0] = false;
flipAxes[1] = false;
if (argc > 1)
{
typedef itk::ImageFileReader<ImageType> ReaderType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
reader->Update();
image = reader->GetOutput();
desc << itksys::SystemTools::GetFilenameName(argv[1]);
if (argc > 2)
{
flipAxes[atoi(argv[2])] = true;
}
if (argc > 3)
{
flipAxes[atoi(argv[3])] = true;
}
}
else
{
CreateImage(image);
desc << "Synthetic image";
flipAxes[1] = true;
}
FlipImageFilterType;
FlipImageFilterType::Pointer flipFilter
= FlipImageFilterType::New ();
flipFilter->SetInput(image);
flipFilter->SetFlipAxes(flipAxes);
QuickView viewer;
viewer.AddImage(
image.GetPointer(),
true,
desc.str());
std::stringstream desc2;
desc2 << "Flip, flipAxes= " << flipAxes;
viewer.AddImage(
flipFilter->GetOutput(),
true,
desc2.str());
viewer.ShareCameraOff();
viewer.Visualize();
return EXIT_SUCCESS;
}
void CreateImage(ImageType::Pointer image)
{
// Create an image with 2 connected components
ImageType::RegionType region;
ImageType::IndexType start;
start[0] = 0;
start[1] = 0;
ImageType::SizeType size;
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 = 20; c < 80; c++)
{
ImageType::IndexType pixelIndex;
pixelIndex[0] = r;
pixelIndex[1] = c;
image->SetPixel(pixelIndex, 255);
}
}
}