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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 "itkIsotropicFourthOrderLevelSetImageFilter.h"
#include <iostream>
int
itkIsotropicFourthOrderLevelSetImageFilterTest(int, char *[])
{
using ImageType = itk::Image<float, 2>;
using IndexType = ImageType::IndexType;
auto im_init = ImageType::New();
ImageType::RegionType r;
ImageType::SizeType sz = { { 128, 128 } };
ImageType::IndexType idx = { { 0, 0 } };
r.SetSize(sz);
r.SetIndex(idx);
im_init->SetRegions(r);
im_init->Allocate();
IndexType index;
for (index[0] = 0; index[0] < 128; index[0]++)
for (index[1] = 0; index[1] < 128; index[1]++)
{
if ((index[0] >= 32) && (index[0] <= 96) && (index[1] >= 32) && (index[1] <= 96))
{
im_init->SetPixel(index, static_cast<float>(-1));
}
else
{
im_init->SetPixel(index, static_cast<float>(1));
}
}
using FilterType = itk::IsotropicFourthOrderLevelSetImageFilter<ImageType, ImageType>;
auto filter = FilterType::New();
filter->SetMaxFilterIteration(250);
filter->SetInput(im_init);
std::cout << "max iteration = " << (filter->GetMaxFilterIteration()) << '\n';
std::cout << "Starting processing.\n";
filter->Update();
filter->Print(std::cout);
std::cout << "Passed.\n";
return EXIT_SUCCESS;
}
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