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| This example demonstrates how to watch what is going on inside of a filter.
| | {{warning|1=The media wiki content on this page is no longer maintained.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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| ==SimpleFilterWatcher.cxx==
| | [https://itk.org/ITKExamples[ITK Sphinx Examples]] |
| <source lang="cpp">
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| #include "itkImage.h"
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| #include "itkSimpleFilterWatcher.h"
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| #include "itkThresholdImageFilter.h"
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| #include "itkImageRegionIterator.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, char *[])
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| {
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| ImageType::Pointer image = ImageType::New();
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| CreateImage(image);
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|
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| typedef itk::ThresholdImageFilter <ImageType>
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| ThresholdImageFilterType;
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| ThresholdImageFilterType::Pointer thresholdFilter
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| = ThresholdImageFilterType::New();
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| thresholdFilter->SetInput(image);
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| thresholdFilter->ThresholdBelow(100);
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| thresholdFilter->SetOutsideValue(0);
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| itk::SimpleFilterWatcher watcher(thresholdFilter, "ThresholdFilter");
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|
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| thresholdFilter->Update();
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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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| // Create an image with 2 connected components
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| ImageType::RegionType region;
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| ImageType::IndexType start;
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| start[0] = 0;
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| start[1] = 0;
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| ImageType::SizeType size;
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| size[0] = 100;
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| size[1] = 100;
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| region.SetSize(size);
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| region.SetIndex(start);
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| image->SetRegions(region);
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| image->Allocate();
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|
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| itk::ImageRegionIterator<ImageType> imageIterator(image,region);
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| while(!imageIterator.IsAtEnd())
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| {
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| imageIterator.Set(255);
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| ++imageIterator;
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| }
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| }
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| </source>
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| | |
| ==CMakeLists.txt==
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| <source lang="cmake">
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| cmake_minimum_required(VERSION 2.6)
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| PROJECT(SimpleFilterWatcher)
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| FIND_PACKAGE(ITK REQUIRED)
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| INCLUDE(${ITK_USE_FILE})
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| ADD_EXECUTABLE(SimpleFilterWatcher SimpleFilterWatcher.cpp)
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| TARGET_LINK_LIBRARIES(SimpleFilterWatcher ITKIO)
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| </source>
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