ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageFeature/DerivativeImage/Code.cxx
/*=========================================================================
*
* Copyright NumFOCUS
*
* Licensed under the Apache License, Version 2.0 (the "License");
* you may not use this file except in compliance with the License.
* You may obtain a copy of the License at
*
* http://www.apache.org/licenses/LICENSE-2.0.txt
*
* Unless required by applicable law or agreed to in writing, software
* distributed under the License is distributed on an "AS IS" BASIS,
* WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
* See the License for the specific language governing permissions and
* limitations under the License.
*
*=========================================================================*/
#include "itkImage.h"
#ifdef ENABLE_QUICKVIEW
# include "QuickView.h"
#endif
int
main(int argc, char * argv[])
{
// Verify command line arguments
if (argc < 2)
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << " inputImageFile" << std::endl;
return EXIT_FAILURE;
}
// Parse command line arguments
std::string inputFilename = argv[1];
// Setup types
using FloatImageType = itk::Image<float, 2>;
using UnsignedCharImageType = itk::Image<unsigned char, 2>;
// Create and setup a reader
readerType::Pointer reader = readerType::New();
reader->SetFileName(inputFilename.c_str());
// Create and setup a derivative filter
filterType::Pointer derivativeFilter = filterType::New();
derivativeFilter->SetInput(reader->GetOutput());
derivativeFilter->SetDirection(0); // "x" axis
#ifdef ENABLE_QUICKVIEW
QuickView viewer;
viewer.AddImage<UnsignedCharImageType>(reader->GetOutput());
viewer.AddImage<FloatImageType>(derivativeFilter->GetOutput());
viewer.Visualize();
#endif
return EXIT_SUCCESS;
}
itkImageFileReader.h
itkImage.h
itk::DerivativeImageFilter
Computes the directional derivative of an image. The directional derivative at each pixel location is...
Definition: itkDerivativeImageFilter.h:50
itk::ImageFileReader
Data source that reads image data from a single file.
Definition: itkImageFileReader.h:75
QuickView.h
QuickView::AddImage
void AddImage(TImage *, bool FlipVertical=true, std::string Description="")
QuickView
A convenient class to render itk images with vtk.
Definition: QuickView.h:111
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:86
QuickView::Visualize
void Visualize(bool interact=true)
itkDerivativeImageFilter.h