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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 "itkBinaryMaskToNarrowBandPointSetFilter.h"
#include "itkPointSet.h"
#include "itkImageRegionIterator.h"
#include "itkTestingMacros.h"
int
itkBinaryMaskToNarrowBandPointSetFilterTest(int argc, char * argv[])
{
if (argc != 2)
{
std::cerr << "Missing parameters." << std::endl;
std::cerr << "Usage: " << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << " bandWidth" << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int Dimension = 2;
using BinaryMaskPixelType = unsigned char;
using BinaryMaskImageType = itk::Image<BinaryMaskPixelType, Dimension>;
//
// Initialize an image with a white square in a black background
//
auto binaryMask = BinaryMaskImageType::New();
BinaryMaskImageType::SizeType size;
BinaryMaskImageType::IndexType index;
BinaryMaskImageType::RegionType region;
size[0] = 100;
size[1] = 100;
index[0] = 0;
index[1] = 0;
region.SetIndex(index);
region.SetSize(size);
binaryMask->SetRegions(region);
binaryMask->AllocateInitialized();
size[0] = 60;
size[1] = 60;
index[0] = 20;
index[1] = 20;
region.SetIndex(index);
region.SetSize(size);
itk::ImageRegionIterator<BinaryMaskImageType> it(binaryMask, region);
it.GoToBegin();
while (!it.IsAtEnd())
{
it.Set(255);
++it;
}
//
// Set up the filter
//
using PointSetType = itk::PointSet<float, Dimension>;
using GeneratorType = itk::BinaryMaskToNarrowBandPointSetFilter<BinaryMaskImageType, PointSetType>;
auto narrowBandGenerator = GeneratorType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(narrowBandGenerator, BinaryMaskToNarrowBandPointSetFilter, ImageToMeshFilter);
auto bandWidth = std::stod(argv[1]);
narrowBandGenerator->SetBandWidth(bandWidth);
ITK_TEST_SET_GET_VALUE(bandWidth, narrowBandGenerator->GetBandWidth());
narrowBandGenerator->SetInput(binaryMask);
try
{
narrowBandGenerator->Update();
}
catch (const itk::ExceptionObject & excp)
{
std::cerr << "Exception thrown during the execution of the generator " << std::endl;
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
//
// Checking the output
//
using PointType = PointSetType::PointType;
using PointsContainer = PointSetType::PointsContainer;
using PointsContainerPointer = PointsContainer::Pointer;
using PointsIterator = PointsContainer::ConstIterator;
using PointDataContainer = PointSetType::PointDataContainer;
using PointDataContainerPointer = PointDataContainer::Pointer;
using PointDataIterator = PointDataContainer::ConstIterator;
PointSetType::Pointer pointSet = narrowBandGenerator->GetOutput();
PointsContainerPointer points = pointSet->GetPoints();
PointDataContainerPointer pointData = pointSet->GetPointData();
PointsIterator point = points->Begin();
PointsIterator lastPoint = points->End();
PointDataIterator data = pointData->Begin();
PointDataIterator lastData = pointData->End();
while (point != lastPoint && data != lastData)
{
const PointType & p = point.Value();
index = binaryMask->TransformPhysicalPointToIndex(p);
if ((!binaryMask->GetPixel(index) && data.Value() > 0) || (binaryMask->GetPixel(index) && data.Value() < 0))
{
std::cerr << "Pixel " << index << " shouldn't be in the narrow band" << std::endl;
return EXIT_FAILURE;
}
++point;
++data;
}
return EXIT_SUCCESS;
}
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