SimpleITK  
FilterProgressReporting/FilterProgressReporting.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.
*
*=========================================================================*/
// This one header will include all SimpleITK filters and external
// objects.
#include <SimpleITK.h>
#include <iostream>
#include <stdlib.h>
#include <iomanip>
// create convenient namespace alias
namespace sitk = itk::simple;
// Create A Command Callback to be registered with the ProcessObject
// on the ProgressEvent
//
// Internally we maintain a reference to the ProcessObject passed
// during construction. Therefore, it would be an error to execute the
// Execute method after the ProcessObject is delete. But this class
// can be created on the stack, with out issue.
class ProgressUpdate : public sitk::Command
{
public:
ProgressUpdate(const sitk::ProcessObject & po)
: m_Process(po)
{}
void
Execute() override
{
// stash the stream state
std::ios state(NULL);
state.copyfmt(std::cout);
std::cout << std::fixed << std::setw(3) << std::setprecision(2);
// Print the Progress "Active Measurement"
std::cout << m_Process.GetName() << " Progress: " << m_Process.GetProgress() << std::endl;
std::cout.copyfmt(state);
}
private:
const sitk::ProcessObject & m_Process;
};
int
main(int argc, char * argv[])
{
if (argc < 4)
{
std::cerr << "Usage: " << argv[0] << " <input> <variance> <output>\n";
return 1;
}
// Read the image file
reader.SetFileName(std::string(argv[1]));
sitk::Image image = reader.Execute();
// This filters perform a gaussian blurring with sigma in physical
// space. The output image will be of real type.
gaussian.SetVariance(atof(argv[2]));
// Construct our custom command on the stack
ProgressUpdate cmd(gaussian);
// register it with the filter for the ProgressEvent
sitk::Image blurredImage = gaussian.Execute(image);
// Covert the real output image back to the original pixel type, to
// make writing easier, as many file formats don't support real
// pixels.
caster.SetOutputPixelType(image.GetPixelID());
sitk::Image outputImage = caster.Execute(blurredImage);
// write the image
writer.SetFileName(std::string(argv[3]));
writer.AddCommand(sitk::sitkStartEvent, [] { std::cout << "Writting..." << std::flush; });
writer.AddCommand(sitk::sitkEndEvent, [] { std::cout << "done" << std::endl; });
writer.Execute(outputImage);
return 0;
}
itk::simple::Image
The Image class for SimpleITK.
Definition: sitkImage.h:76
itk::simple::sitkEndEvent
@ sitkEndEvent
Occurs at then end of normal processing.
Definition: sitkEvent.h:44
itk::simple::ProcessObject::AddCommand
virtual int AddCommand(itk::simple::EventEnum event, itk::simple::Command &cmd)
Add a Command Object to observer the event.
itk::simple::DiscreteGaussianImageFilter
Blurs an image by separable convolution with discrete gaussian kernels. This filter performs Gaussian...
Definition: sitkDiscreteGaussianImageFilter.h:59
itk::simple::DiscreteGaussianImageFilter::SetVariance
Self & SetVariance(std::vector< double > Variance)
Definition: sitkDiscreteGaussianImageFilter.h:76
itk::simple::ImageFileWriter::Execute
Self & Execute(const Image &)
itk::simple::ImageFileReader
Read an image file and return a SimpleITK Image.
Definition: sitkImageFileReader.h:74
SimpleITK.h
itk::simple::DiscreteGaussianImageFilter::Execute
Image Execute(const Image &image1)
itk::simple::Command
An implementation of the Command design pattern for callback.
Definition: sitkCommand.h:44
itk::simple::Image::GetPixelID
PixelIDValueEnum GetPixelID() const
itk::simple::ImageFileReader::SetFileName
Self & SetFileName(const PathType &fn)
itk::simple::CastImageFilter
A hybrid cast image filter to convert images to other types of images.
Definition: sitkCastImageFilter.h:39
itk::simple::sitkStartEvent
@ sitkStartEvent
Occurs when then itk::ProcessObject is starting.
Definition: sitkEvent.h:53
itk::simple::ImageFileReader::Execute
Image Execute() override
Set/Get The output PixelType of the image.
itk::simple::ImageFileWriter::SetFileName
Self & SetFileName(const PathType &fileName)
itk::simple::CastImageFilter::SetOutputPixelType
Self & SetOutputPixelType(PixelIDValueEnum pixelID)
itk::simple::Command::Execute
virtual void Execute()
itk::simple::ProcessObject
Base class for SimpleITK classes based on ProcessObject.
Definition: sitkProcessObject.h:54
itk::simple::sitkProgressEvent
@ sitkProgressEvent
Occurs when the progress changes in most process objects.
Definition: sitkEvent.h:50
itk::simple
Definition: sitkAdditionalProcedures.h:28
itk::simple::ImageFileWriter
Write out a SimpleITK image to the specified file location.
Definition: sitkImageFileWriter.h:51
itk::simple::CastImageFilter::Execute
Image Execute(const Image &)