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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 <iostream>
#include "itkLabelImageToLabelMapFilter.h"
#include "itkTestingMacros.h"
int
itkShiftLabelObjectTest(int argc, char * argv[])
{
if (argc != 1)
{
std::cerr << "usage: " << itkNameOfTestExecutableMacro(argv) << "" << std::endl;
return EXIT_FAILURE;
}
constexpr int dim = 2;
using LabelObjectType = itk::LabelObject<unsigned long, dim>;
using IndexType = LabelObjectType::IndexType;
using OffsetType = LabelObjectType::OffsetType;
using LabelMapType = itk::LabelMap<LabelObjectType>;
using SizeType = LabelMapType::SizeType;
using ImageType = itk::Image<unsigned char, dim>;
using LabelImageToLabelMapFilterType = itk::LabelImageToLabelMapFilter<ImageType, LabelMapType>;
auto image = ImageType::New();
SizeType sizeIn;
sizeIn[0] = 12;
sizeIn[1] = 12;
image->SetRegions(sizeIn);
image->Allocate();
image->FillBuffer(0);
IndexType idxHorizontal;
idxHorizontal[1] = 6;
IndexType idxVertical;
idxVertical[0] = 6;
for (int ctr = 1; ctr < 12; ++ctr)
{
idxHorizontal[0] = ctr;
idxVertical[1] = ctr;
image->SetPixel(idxHorizontal, 1);
image->SetPixel(idxVertical, 1);
}
auto conversion = LabelImageToLabelMapFilterType::New();
conversion->SetInput(image);
conversion->Update();
LabelMapType::Pointer map;
map = conversion->GetOutput();
OffsetType o;
o[0] = -1;
o[1] = -1;
map->GetLabelObject(1)->Shift(o);
map->Print(std::cout);
std::cout << "Printing out map." << std::endl;
for (int ctrI = 0; ctrI < 11; ++ctrI)
{
for (int ctrJ = 0; ctrJ < 11; ++ctrJ)
{
IndexType index;
index[0] = ctrI;
index[1] = ctrJ;
unsigned long val;
val = map->GetPixel(index);
std::cout << "Pixel[" << ctrI << ',' << ctrJ << "]: " << val << std::endl;
if ((ctrI == 5) || (ctrJ == 5))
{
itkAssertOrThrowMacro((val == 1), "Error in Label Image (foreground).");
}
else
{
itkAssertOrThrowMacro((val == 0), "Error in Label Image (background).");
}
}
}
std::cout << "End - Printing out map." << std::endl << std::endl;
conversion->Print(std::cout);
return EXIT_SUCCESS;
}
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