|
|
| (One intermediate revision by one other user not shown) |
| Line 1: |
Line 1: |
| ==VectorMagnitudeImageFilter.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| | {{warning|1=The media wiki content on this page is no longer maintained.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">
| | }} |
| #include "itkImage.h"
| |
| #include "itkImageFileReader.h"
| |
| #include "itkImageFileWriter.h"
| |
| #include "itkRescaleIntensityImageFilter.h"
| |
| #include "itkVectorImage.h"
| |
| #include "itkVectorMagnitudeImageFilter.h"
| |
| | |
| int main(int argc, char * argv[])
| |
| { | |
| // Verify command line arguments
| |
| if( argc < 3 )
| |
| {
| |
| std::cerr << "Usage: " << std::endl;
| |
| std::cerr << argv[0] << " inputImageFile outputImageFile" << std::endl;
| |
| return EXIT_FAILURE;
| |
| }
| |
| | |
| // Parse command line arguments
| |
| std::string inputFilename = argv[1];
| |
| std::string outputFilename = argv[2];
| |
| | |
| // Setup types
| |
| typedef itk::VectorImage< float, 2 > VectorImageType;
| |
| typedef itk::Image< unsigned char, 2 > UnsignedCharImageType;
| |
| | |
| // Create and setup a reader
| |
| typedef itk::ImageFileReader< VectorImageType > ReaderType;
| |
| ReaderType::Pointer reader = ReaderType::New();
| |
| reader->SetFileName( inputFilename );
| |
| | |
| typedef itk::ImageFileWriter< UnsignedCharImageType > WriterType;
| |
| | |
| typedef itk::VectorMagnitudeImageFilter< | |
| VectorImageType, UnsignedCharImageType > VectorMagnitudeFilterType;
| |
| VectorMagnitudeFilterType::Pointer magnitudeFilter =
| |
| VectorMagnitudeFilterType::New();
| |
| magnitudeFilter->SetInput( reader->GetOutput() );
| |
| | |
| // To write the magnitude image file, we should rescale the gradient values
| |
| // to a reasonable range
| |
| typedef itk::RescaleIntensityImageFilter<
| |
| UnsignedCharImageType, UnsignedCharImageType > rescaleFilterType;
| |
| | |
| rescaleFilterType::Pointer rescaler =
| |
| rescaleFilterType::New();
| |
| rescaler->SetOutputMinimum(0);
| |
| rescaler->SetOutputMaximum(255);
| |
| rescaler->SetInput( magnitudeFilter->GetOutput() );
| |
|
| |
| WriterType::Pointer writer =
| |
| WriterType::New();
| |
| | |
| writer->SetFileName( outputFilename );
| |
| writer->SetInput( rescaler->GetOutput() );
| |
| writer->Update();
| |
| | |
| return EXIT_SUCCESS;
| |
| }
| |
| </source>
| |
| | |
| {{ITKCMakeLists|VectorMagnitudeImageFilter}}
| |
