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| Runs, but output seems to sharp - I would have expected a much fuzzier boundary around the rectangle.
| | {{warning|1=The media wiki content on this page is no longer maintained.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.}} |
| | |
| ==EdgePotentialImageFilter.cxx== | |
| <source lang="cpp">
| |
| #include "itkCovariantVector.h"
| |
| #include "itkEdgePotentialImageFilter.h"
| |
| #include "itkGradientImageFilter.h"
| |
| #include "itkImage.h"
| |
| #include "itkImageFileWriter.h"
| |
| #include "itkRescaleIntensityImageFilter.h"
| |
| | |
| typedef itk::Image< unsigned char, 2 > UnsignedCharImageType;
| |
| | |
| static void CreateImage(UnsignedCharImageType::Pointer image);
| |
| | |
| int main(int argc, char * argv[])
| |
| {
| |
| // Setup types
| |
| typedef itk::Image< float, 2 > FloatImageType;
| |
| typedef itk::Image< itk::CovariantVector<float, 2>, 2 > VectorImageType;
| |
| | |
| UnsignedCharImageType::Pointer image = UnsignedCharImageType::New();
| |
| CreateImage(image);
| |
|
| |
| // Create and setup a gradient filter
| |
| typedef itk::GradientImageFilter<
| |
| UnsignedCharImageType, float> GradientFilterType;
| |
| GradientFilterType::Pointer gradientFilter = GradientFilterType::New();
| |
| gradientFilter->SetInput(image);
| |
| gradientFilter->Update();
| |
| | |
| // Create and setup an edge potential filter
| |
| typedef itk::EdgePotentialImageFilter<
| |
| VectorImageType, FloatImageType> EdgePotentialImageFilterType;
| |
| EdgePotentialImageFilterType::Pointer edgePotentialImageFilter = EdgePotentialImageFilterType::New();
| |
| edgePotentialImageFilter->SetInput( gradientFilter->GetOutput() );
| |
| edgePotentialImageFilter->Update();
| |
| | |
| // Scale so we can write to a PNG
| |
| typedef itk::RescaleIntensityImageFilter< FloatImageType, UnsignedCharImageType > RescaleFilterType;
| |
| RescaleFilterType::Pointer rescaleFilter = RescaleFilterType::New();
| |
| rescaleFilter->SetInput(edgePotentialImageFilter->GetOutput());
| |
| rescaleFilter->SetOutputMinimum(0);
| |
| rescaleFilter->SetOutputMaximum(255);
| |
| rescaleFilter->Update();
| |
| | |
| typedef itk::ImageFileWriter<UnsignedCharImageType> FileWriterType;
| |
| FileWriterType::Pointer writer = FileWriterType::New();
| |
| writer->SetFileName("output.png");
| |
| writer->SetInput(rescaleFilter->GetOutput());
| |
| writer->Update();
| |
|
| |
| return EXIT_SUCCESS;
| |
| }
| |
| | |
| | |
| void CreateImage(UnsignedCharImageType::Pointer image)
| |
| {
| |
| // Create a black image with 2 white regions
| |
|
| |
| UnsignedCharImageType::IndexType start;
| |
| start.Fill(0);
| |
| | |
| UnsignedCharImageType::SizeType size; | |
| size.Fill(200);
| |
| | |
| UnsignedCharImageType::RegionType region(start,size);
| |
| image->SetRegions(region);
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| image->Allocate();
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| image->FillBuffer(0);
| |
|
| |
| // Make a square
| |
| for(unsigned int r = 20; r < 80; r++)
| |
| {
| |
| for(unsigned int c = 30; c < 100; c++)
| |
| {
| |
| UnsignedCharImageType::IndexType pixelIndex;
| |
| pixelIndex[0] = r;
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| pixelIndex[1] = c;
| |
| | |
| image->SetPixel(pixelIndex, 255);
| |
| | |
| }
| |
| }
| |
| | |
| }
| |
| | |
| </source>
| |
| | |
| {{ITKCMakeLists|{{SUBPAGENAME}}}}
| |