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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 "itkNotImageFilter.h"
#include "itkTestingMacros.h"
int
itkNotImageFilterTest(int, char *[])
{
// Define the dimension of the images
constexpr unsigned int Dimension = 3;
// Declare the types of the images
using PixelType = unsigned char;
// Declare the types of the images
using InputImageType = itk::Image<PixelType, Dimension>;
using OutputImageType = itk::Image<PixelType, Dimension>;
// Declare the type of the index to access images
using IndexType = itk::Index<Dimension>;
// Declare the type of the size
using SizeType = itk::Size<Dimension>;
// Declare the type of the Region
using RegionType = itk::ImageRegion<Dimension>;
// Declare the type for the filter
using NotImageFilterType = itk::NotImageFilter<InputImageType, OutputImageType>;
// Create the input image
auto inputImage = InputImageType::New();
// Define their size, and start index
SizeType size;
size[0] = 2;
size[1] = 2;
size[2] = 2;
IndexType start;
start[0] = 0;
start[1] = 0;
start[2] = 0;
RegionType region;
region.SetIndex(start);
region.SetSize(size);
// Initialize input image
inputImage->SetRegions(region);
inputImage->Allocate();
// Declare appropriate Iterator types for each image
using InputIteratorType = itk::ImageRegionIteratorWithIndex<InputImageType>;
using OutputIteratorType = itk::ImageRegionIteratorWithIndex<OutputImageType>;
// Create one iterator for Image A (this is a light object)
InputIteratorType it(inputImage, inputImage->GetBufferedRegion());
it.GoToBegin();
// Initialize the content of Image A
while (!it.IsAtEnd())
{
it.Set(true);
++it;
}
// Create the filter
auto filter = NotImageFilterType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(filter, NotImageFilter, UnaryFunctorImageFilter);
filter->SetForegroundValue(2);
ITK_TEST_SET_GET_VALUE(2, filter->GetForegroundValue());
filter->SetForegroundValue(1);
filter->SetBackgroundValue(10);
ITK_TEST_SET_GET_VALUE(10, filter->GetBackgroundValue());
filter->SetBackgroundValue(0);
// Set the input images
filter->SetInput(inputImage);
filter->SetFunctor(filter->GetFunctor());
// Execute the filter
filter->Update();
// Get the filter output
OutputImageType::Pointer outputImage = filter->GetOutput();
// Create an iterator for going through the image output
OutputIteratorType ot(outputImage, outputImage->GetBufferedRegion());
ot.GoToBegin();
// Check the content of the result image
ot.GoToBegin();
it.GoToBegin();
while (!ot.IsAtEnd())
{
const InputImageType::PixelType input = it.Get();
const OutputImageType::PixelType output = ot.Get();
ITK_TEST_EXPECT_EQUAL(input, !output);
++ot;
++it;
}
// All objects should be automatically destroyed at this point
return EXIT_SUCCESS;
}
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