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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"
void
zeroSizeCase()
{
// test filter with zero sized image
constexpr unsigned int ImageDimension = 3;
using PixelType = unsigned char;
using ImageType = itk::Image<PixelType, ImageDimension>;
auto p_filter = itk::LabelImageToLabelMapFilter<ImageType>::New();
auto p_image = ImageType::New();
// The image region is empty by default: do not set any region to it and allocate memory
p_image->AllocateInitialized();
p_filter->SetInput(p_image);
p_filter->Update();
}
int
itkLabelImageToLabelMapFilterTest(int, char *[])
{
constexpr int Dimension = 2;
using LabelObjectType = itk::LabelObject<unsigned long, Dimension>;
using IndexType = LabelObjectType::IndexType;
using LabelMapType = itk::LabelMap<LabelObjectType>;
using SizeType = LabelMapType::SizeType;
using ImageType = itk::Image<unsigned char, Dimension>;
using LabelImageToLabelMapFilterType = itk::LabelImageToLabelMapFilter<ImageType, LabelMapType>;
auto image = ImageType::New();
SizeType sizeIn;
sizeIn[0] = 11;
sizeIn[1] = 11;
image->SetRegions(sizeIn);
image->Allocate();
image->FillBuffer(255);
IndexType idxHorizontal;
idxHorizontal[1] = 5;
IndexType idxVertical;
idxVertical[0] = 5;
for (int ctr = 0; ctr < 11; ++ctr)
{
idxHorizontal[0] = ctr;
idxVertical[1] = ctr;
image->SetPixel(idxHorizontal, 1);
image->SetPixel(idxVertical, 1);
}
idxHorizontal[1] = 7;
idxVertical[0] = 7;
for (int ctr = 0; ctr < 11; ++ctr)
{
idxHorizontal[0] = ctr;
idxVertical[1] = ctr;
image->SetPixel(idxHorizontal, 5);
image->SetPixel(idxVertical, 2);
}
idxHorizontal[0] = 7;
image->SetPixel(idxHorizontal, 3);
auto conversion = LabelImageToLabelMapFilterType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(conversion, LabelImageToLabelMapFilter, ImageToImageFilter);
conversion->SetInput(image);
conversion->SetBackgroundValue(255);
conversion->Update();
itkAssertOrThrowMacro((conversion->GetBackgroundValue() == 255), "Error conversion background value.");
LabelMapType::Pointer map;
map = conversion->GetOutput();
itkAssertOrThrowMacro((map->GetBackgroundValue() == 255), "Error in Label Image (background).");
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)) && (ctrI != 7) && (ctrJ != 7))
{
itkAssertOrThrowMacro((val == 1), "Error in Label Image (foreground).");
}
else
{
if ((ctrI == 7) && (ctrJ == 7))
{
itkAssertOrThrowMacro((val == 3), "Error in Label Image (foreground).");
continue;
}
else if (ctrJ == 7)
{
itkAssertOrThrowMacro((val == 5), "Error in Label Image (foreground).");
}
else if (ctrI == 7)
{
itkAssertOrThrowMacro((val == 2), "Error in Label Image (foreground).");
}
else
{
itkAssertOrThrowMacro((val == 255), "Error in Label Image (background).");
}
}
}
}
zeroSizeCase();
std::cout << "Test finished." << std::endl;
return EXIT_SUCCESS;
}
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