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| <div class="floatcenter">[[File:ITK_Examples_Baseline_EdgesAndGradients_TestSobelEdgeDetectionImageFilter.png]]</div>
| | {{warning|1=The media wiki content on this page is no longer maintained.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. |
| ==SobelEdgeDetectionImageFilter.cxx==
| | }} |
| <source lang="cpp">
| |
| #include "itkImage.h"
| |
| #include "itkSobelEdgeDetectionImageFilter.h"
| |
| #include "itkImageFileReader.h"
| |
|
| |
|
| #include "itksys/SystemTools.hxx"
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| | |
| #include "QuickView.h"
| |
| | |
| typedef itk::Image<unsigned char, 2> UnsignedCharImageType;
| |
| typedef itk::Image<float, 2> FloatImageType;
| |
| | |
| typedef FloatImageType ImageType;
| |
| static void CreateImage(ImageType::Pointer);
| |
| | |
| int main(int argc, char *argv[])
| |
| {
| |
| ImageType::Pointer image = ImageType::New();
| |
| if (argc < 2)
| |
| {
| |
| CreateImage(image);
| |
| }
| |
| else
| |
| {
| |
| typedef itk::ImageFileReader<ImageType> ReaderType;
| |
| ReaderType::Pointer reader = ReaderType::New();
| |
| reader->SetFileName (argv[1]);
| |
| reader->Update();
| |
| image = reader->GetOutput();
| |
| }
| |
| | |
| typedef itk::SobelEdgeDetectionImageFilter <ImageType, FloatImageType>
| |
| SobelEdgeDetectionImageFilterType;
| |
| SobelEdgeDetectionImageFilterType::Pointer sobelFilter
| |
| = SobelEdgeDetectionImageFilterType::New();
| |
| sobelFilter->SetInput(image);
| |
| | |
| QuickView viewer;
| |
| if (argc > 1)
| |
| {
| |
| viewer.AddImage<ImageType>(
| |
| image,
| |
| true,
| |
| itksys::SystemTools::GetFilenameName(argv[1]));
| |
| }
| |
| else
| |
| {
| |
| viewer.AddImage<ImageType>(image);
| |
| }
| |
| viewer.AddImage<FloatImageType>(
| |
| sobelFilter->GetOutput(),
| |
| true,
| |
| "SobelEdgeDetectionImageFilter");
| |
| | |
| viewer.Visualize();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| | |
| void CreateImage(ImageType::Pointer image)
| |
| {
| |
| itk::Index<2> start;
| |
| start.Fill(0);
| |
| | |
| itk::Size<2> size;
| |
| size.Fill(100);
| |
| | |
| itk::ImageRegion<2> region(start, size);
| |
| image->SetRegions(region);
| |
| image->Allocate();
| |
| | |
| // Make a square
| |
| for(unsigned int r = 20; r < 80; r++)
| |
| {
| |
| for(unsigned int c = 20; c < 80; c++)
| |
| {
| |
| itk::Index<2> pixelIndex;
| |
| pixelIndex[0] = r;
| |
| pixelIndex[1] = c;
| |
| | |
| image->SetPixel(pixelIndex, 15);
| |
| }
| |
| }
| |
| }
| |
| </source>
| |
| | |
| {{ITKVTKCMakeLists|{{SUBPAGENAME}}}}
| |
