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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 "itkImageRegionIterator.h"
#include "itkBinaryThresholdImageFunction.h"
int
itkBinaryThresholdImageFunctionTest(int, char *[])
{
std::cout << "itkBinaryThresholdImageFunctionTest Start" << std::endl;
using FloatImage = itk::Image<float, 3>;
auto image = FloatImage::New();
FloatImage::RegionType region;
FloatImage::SizeType size;
size.Fill(64);
FloatImage::IndexType index;
index.Fill(0);
region.SetIndex(index);
region.SetSize(size);
image->SetRegions(region);
image->AllocateInitialized();
for (unsigned int i = 0; i < FloatImage::ImageDimension; ++i)
{
size[i] -= 20;
index[i] += 10;
}
region.SetIndex(index);
region.SetSize(size);
itk::ImageRegionIterator<FloatImage> it(image, region);
while (!it.IsAtEnd())
{
it.Set(100.0);
++it;
}
// Try the function inside and outside the region
using ImageFunction = itk::BinaryThresholdImageFunction<FloatImage>;
auto threshold = ImageFunction::New();
ImageFunction::PointType point;
ImageFunction::ContinuousIndexType continuousIndex;
threshold->SetInputImage(image);
threshold->ThresholdBelow(100.0);
index[0] = 11;
index[1] = 11;
index[2] = 11;
int failed = 0;
if (!threshold->EvaluateAtIndex(index))
{
failed++;
}
threshold->ThresholdAbove(100.0);
if (!threshold->EvaluateAtIndex(index))
{
failed++;
}
threshold->ThresholdAbove(101.0);
if (threshold->EvaluateAtIndex(index))
{
failed++;
}
threshold->ThresholdBetween(100.0, 100.0);
if (!threshold->EvaluateAtIndex(index))
{
failed++;
}
threshold->ThresholdBetween(-100.0, 0.0);
if (threshold->EvaluateAtIndex(index))
{
failed++;
}
index[0] = 8;
index[1] = 8;
index[2] = 8;
threshold->ThresholdBetween(100.0, 200.0);
if (threshold->EvaluateAtIndex(index))
{
failed++;
}
std::cout << threshold;
// Test Evaluate
point[0] = 5;
point[1] = 5;
point[2] = 5;
threshold->Evaluate(point);
// Test EvaluateAtContinuousIndex
continuousIndex[0] = 9;
continuousIndex[1] = 9;
continuousIndex[2] = 9;
threshold->EvaluateAtContinuousIndex(continuousIndex);
if (failed)
{
std::cout << "Failed!" << std::endl;
return EXIT_FAILURE;
}
else
{
std::cout << "Passed!" << std::endl;
}
return EXIT_SUCCESS;
}
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