ITK  5.0.0
Insight Segmentation and Registration Toolkit
WikiExamples/ImageProcessing/PasteImageFilter.cxx
#include "itkImage.h"
#include "QuickView.h"
using ImageType = itk::Image<unsigned char, 2>;
static void CreateImage1(ImageType::Pointer image);
static void CreateImage2(ImageType::Pointer image);
int main(int, char *[])
{
ImageType::Pointer image1 = ImageType::New();
CreateImage1(image1);
ImageType::Pointer image2 = ImageType::New();
CreateImage2(image2);
using PasteImageFilterType = itk::PasteImageFilter <ImageType, ImageType >;
// The SetDestinationIndex() method prescribes where in the first
// input to start pasting data from the second input.
// The SetSourceRegion method prescribes the section of the second
// image to paste into the first.
ImageType::IndexType destinationIndex;
destinationIndex[0] = 10;
destinationIndex[1] = 10;
PasteImageFilterType::Pointer pasteFilter
= PasteImageFilterType::New ();
pasteFilter->SetSourceImage(image1);
pasteFilter->SetDestinationImage(image2);
pasteFilter->SetSourceRegion(image1->GetLargestPossibleRegion());
pasteFilter->SetDestinationIndex(destinationIndex);
QuickView viewer;
viewer.AddImage(
image1.GetPointer());
viewer.AddImage(
image2.GetPointer());
viewer.AddImage(
pasteFilter->GetOutput());
viewer.Visualize();
return EXIT_SUCCESS;
}
void CreateImage1(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 = 20; c < 80; c++)
{
pixelIndex[0] = r;
pixelIndex[1] = c;
image->SetPixel(pixelIndex, 255);
}
}
}
void CreateImage2(ImageType::Pointer image)
{
// Create an image
start[0] = 0;
start[1] = 0;
unsigned int NumRows = 400;
unsigned int NumCols = 500;
size[0] = NumRows;
size[1] = NumCols;
region.SetSize(size);
region.SetIndex(start);
image->SetRegions(region);
image->Allocate();
// Make another square
for(unsigned int r = 0; r < NumRows; r++)
{
for(unsigned int c = 0; c < NumCols; c++)
{
pixelIndex[0] = r;
pixelIndex[1] = c;
image->SetPixel(pixelIndex, 200);
}
}
}