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| The iterator only visits 4-connected neighbors. The code in FloodFilledFunctionConditionalConstIterator.txx should be replaced. | | {{warning|1=The media wiki content on this page is no longer maintained.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.}} |
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| ==FloodFilledImageFunctionConditionalIterator.cxx==
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| <source lang="cpp">
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| #include "itkImage.h"
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| #include "itkImageFileWriter.h"
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| #include "itkFloodFilledImageFunctionConditionalIterator.h"
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| #include "itkBinaryThresholdImageFunction.h"
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| #include "itkImageFileWriter.h"
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| typedef itk::Image< unsigned char, 2 > ImageType;
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| static void CreateImage(ImageType::Pointer image);
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| int main( int argc, char *argv[])
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| {
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| ImageType::Pointer image = ImageType::New();
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| CreateImage(image);
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| typedef itk::BinaryThresholdImageFunction< ImageType, double > FunctionType;
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| FunctionType::Pointer function = FunctionType::New();
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| function->SetInputImage(image);
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| function->ThresholdAbove(100); // we are looking to capture 255
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| typedef itk::FloodFilledImageFunctionConditionalIterator< ImageType, FunctionType > IteratorType;
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| itk::Index<2> seed;
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| seed[0] = 25;
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| seed[1] = 25;
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| std::vector<itk::Index<2> > seeds;
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| seeds.push_back(seed);
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| IteratorType it (image, function, seeds);
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| it.GoToBegin();
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| while ( !it.IsAtEnd() )
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| {
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| std::cout << it.GetIndex() << std::endl;
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| ++it;
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| }
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| return EXIT_SUCCESS;
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| }
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| void CreateImage(ImageType::Pointer image)
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| {
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| itk::Index<2> start;
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| start.Fill(0);
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| itk::Size<2> size;
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| size.Fill(100); | |
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| itk::ImageRegion<2> region(start,size);
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| image->SetRegions(region);
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| image->Allocate();
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| image->FillBuffer(0);
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| // The line doesn't work at the moment, because it needs 8-connectivity.
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| // Make a line
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| for(unsigned int i = 20; i < 50; ++i)
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| {
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| itk::Index<2> pixelIndex;
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| pixelIndex.Fill(i);
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| image->SetPixel(pixelIndex, 255);
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| }
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| // Make a square
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| // for(unsigned int r = 20; r < 50; r++)
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| // {
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| // for(unsigned int c = 20; c < 50; c++)
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| // {
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| // itk::Index<2> pixelIndex;
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| // pixelIndex[0] = r;
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| // pixelIndex[1] = c;
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| //
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| // image->SetPixel(pixelIndex, 255);
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| // }
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| // }
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| }
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| </source>
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| {{ITKCMakeLists|FloodFilledImageFunctionConditionalIterator}}
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