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/*=========================================================================
*
* 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
*
* https://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 <fstream>
#include "itkConnectedThresholdImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkTestingMacros.h"
int
itkConnectedThresholdImageFilterTest(int argc, char * argv[])
{
if (argc < 7)
{
std::cerr << "Usage: " << itkNameOfTestExecutableMacro(argv) << " InputImage OutputImage "
<< "seed_x seed_y "
<< "LowerConnectedThreshold UpperConnectedThreshold "
<< "Connectivity[1=Full,0=Face]" << std::endl;
return EXIT_FAILURE;
}
// Define the dimension of the images
constexpr unsigned int Dimension = 2;
// Define the pixel types of the images
using PixelType = unsigned char;
// Define the types of the images
using ImageType = itk::Image<PixelType, Dimension>;
itk::ImageFileReader<ImageType>::Pointer imageReader = itk::ImageFileReader<ImageType>::New();
std::string inputImageFilename = argv[1];
imageReader->SetFileName(inputImageFilename);
ITK_TRY_EXPECT_NO_EXCEPTION(imageReader->Update(););
// Create the filter
using ConnectedThresholdImageFilterType = itk::ConnectedThresholdImageFilter<ImageType, ImageType>;
auto connectedThresholdFilter = ConnectedThresholdImageFilterType::New();
itk::SimpleFilterWatcher watcher(connectedThresholdFilter);
ITK_EXERCISE_BASIC_OBJECT_METHODS(connectedThresholdFilter, ConnectedThresholdImageFilter, ImageToImageFilter);
ConnectedThresholdImageFilterType::IndexType seed;
seed[0] = std::stoi(argv[3]);
seed[1] = std::stoi(argv[4]);
connectedThresholdFilter->AddSeed(seed);
ConnectedThresholdImageFilterType::SeedContainerType seedContainer = connectedThresholdFilter->GetSeeds();
connectedThresholdFilter->ClearSeeds();
seedContainer = connectedThresholdFilter->GetSeeds();
if (!seedContainer.empty())
{
std::cerr << "Test FAILED !" << std::endl;
std::cerr << "Seed container not empty after clearing filter seed container !" << std::endl;
return EXIT_FAILURE;
}
connectedThresholdFilter->SetSeed(seed);
ConnectedThresholdImageFilterType::InputPixelObjectType * lowerInputPixelObject =
connectedThresholdFilter->GetLowerInput();
connectedThresholdFilter->SetLower(lowerInputPixelObject->Get());
ITK_TEST_SET_GET_VALUE(lowerInputPixelObject->Get(), connectedThresholdFilter->GetLower());
ConnectedThresholdImageFilterType::InputPixelObjectType * upperInputPixelObject =
connectedThresholdFilter->GetUpperInput();
connectedThresholdFilter->SetUpper(upperInputPixelObject->Get());
ITK_TEST_SET_GET_VALUE(upperInputPixelObject->Get(), connectedThresholdFilter->GetUpper());
ConnectedThresholdImageFilterType::InputImagePixelType lowerThreshold = std::stoi(argv[5]);
connectedThresholdFilter->SetLower(lowerThreshold);
ITK_TEST_SET_GET_VALUE(lowerThreshold, connectedThresholdFilter->GetLower());
ConnectedThresholdImageFilterType::InputImagePixelType upperThreshold = std::stoi(argv[6]);
connectedThresholdFilter->SetUpper(upperThreshold);
ITK_TEST_SET_GET_VALUE(upperThreshold, connectedThresholdFilter->GetUpper());
ConnectedThresholdImageFilterType::OutputImagePixelType replaceValue = 255;
connectedThresholdFilter->SetReplaceValue(replaceValue);
ITK_TEST_SET_GET_VALUE(replaceValue, connectedThresholdFilter->GetReplaceValue());
// Test the use of full (8 connectivity in 2D) on this image
if (argc > 7)
{
ConnectedThresholdImageFilterType::ConnectivityEnum conenctivity =
std::stoi(argv[7]) ? ConnectedThresholdImageFilterType::ConnectivityEnum::FullConnectivity
: ConnectedThresholdImageFilterType::ConnectivityEnum::FaceConnectivity;
connectedThresholdFilter->SetConnectivity(conenctivity);
ITK_TEST_SET_GET_VALUE(conenctivity, connectedThresholdFilter->GetConnectivity());
}
connectedThresholdFilter->SetInput(imageReader->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(connectedThresholdFilter->Update(););
// Write the output image
itk::ImageFileWriter<ImageType>::Pointer writer = itk::ImageFileWriter<ImageType>::New();
std::string outputImageFilename = argv[2];
writer->SetFileName(outputImageFilename);
writer->SetInput(connectedThresholdFilter->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
// Test streaming enumeration for ConnectedThresholdImageFilterEnums::Connectivity elements
const std::set<itk::ConnectedThresholdImageFilterEnums::Connectivity> allConnectivity{
itk::ConnectedThresholdImageFilterEnums::Connectivity::FaceConnectivity,
itk::ConnectedThresholdImageFilterEnums::Connectivity::FullConnectivity
};
for (const auto & ee : allConnectivity)
{
std::cout << "STREAMED ENUM VALUE ConnectedThresholdImageFilterEnums::Connectivity: " << ee << std::endl;
}
return EXIT_SUCCESS;
}
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