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| ==QuickView.cxx== | | {{warning|1=The media wiki content on this page is no longer maintained.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.}} |
| <source lang="cpp">
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| #include "itkImage.h"
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| #include "itkImageFileReader.h"
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| #include "itkRescaleIntensityImageFilter.h"
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| #include "QuickView.h"
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| typedef itk::Image<unsigned char, 2> ImageType;
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| static void CreateImage(ImageType* const image);
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| int main(int argc, char *argv[])
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| {
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| ImageType::Pointer image;
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| if(argc < 2)
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| {
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| //std::cerr << "Required: filename" << std::endl;
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| //return EXIT_FAILURE;
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| image = ImageType::New();
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| CreateImage(image);
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| }
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| else
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| {
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| typedef itk::ImageFileReader<ImageType> ReaderType;
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| ReaderType::Pointer reader = ReaderType::New();
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| reader->SetFileName(argv[1]);
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| image = reader->GetOutput();
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| }
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| typedef itk::RescaleIntensityImageFilter< ImageType, ImageType > RescaleFilterType;
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| RescaleFilterType::Pointer rescaleFilter = RescaleFilterType::New();
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| rescaleFilter->SetInput(image);
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| rescaleFilter->SetOutputMinimum(0);
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| rescaleFilter->SetOutputMaximum(255);
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| rescaleFilter->Update();
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| QuickView viewer;
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| viewer.AddImage(image.GetPointer());
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| viewer.AddImage(rescaleFilter->GetOutput());
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| viewer.Visualize();
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| return EXIT_SUCCESS;
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| }
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| void CreateImage(ImageType* const image)
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| {
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| // Create an image with 2 connected components
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| ImageType::IndexType corner = {{0,0}};
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| ImageType::SizeType size;
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| unsigned int NumRows = 200;
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| unsigned int NumCols = 300;
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| size[0] = NumRows;
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| size[1] = NumCols;
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| ImageType::RegionType region(corner, size); | |
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| image->SetRegions(region);
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| image->Allocate();
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| // Make a square
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| for(unsigned int r = 40; r < 100; r++)
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| {
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| for(unsigned int c = 40; c < 100; c++)
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| {
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| ImageType::IndexType pixelIndex;
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| pixelIndex[0] = r;
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| pixelIndex[1] = c;
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| image->SetPixel(pixelIndex, 15);
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| }
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| }
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| }
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| </source>
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| {{ITKCMakeLists|QuickView}}
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