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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 "itkGridImageSource.h"
#include "itkImageFileWriter.h"
#include "itkBSplineKernelFunction.h"
#include "itkSimpleFilterWatcher.h"
#include "itkTestingMacros.h"
int
itkGridImageSourceTest(int argc, char * argv[])
{
if (argc != 12)
{
std::cout << "Usage: " << itkNameOfTestExecutableMacro(argv) << " outputImage"
<< " imageSize"
<< " sigma"
<< " variableSigma"
<< " gridSpacing"
<< " variableGridSpacing"
<< " gridOffset"
<< " gridAllDimensions"
<< " toggleLastGridDimension"
<< " useBSplineKernel"
<< " bSplineOrder" << std::endl;
return EXIT_FAILURE;
}
constexpr unsigned int ImageDimension = 3;
using PixelType = float;
using ImageType = itk::Image<PixelType, ImageDimension>;
// Instantiate the filter
using GridSourceType = itk::GridImageSource<ImageType>;
auto gridImage = GridSourceType::New();
ITK_EXERCISE_BASIC_OBJECT_METHODS(gridImage, GridImageSource, GenerateImageSource);
// Specify image parameters
auto size = static_cast<ImageType::SizeValueType>(std::stod(argv[2]));
ImageType::SizeType imageSize;
imageSize.Fill(size);
ImageType::PointType origin;
origin.Fill(0.0);
ImageType::SpacingType imageSpacing;
imageSpacing.Fill(1.0);
ImageType::DirectionType direction;
direction.SetIdentity();
gridImage->SetSize(imageSize);
gridImage->SetSpacing(imageSpacing);
gridImage->SetOrigin(origin);
gridImage->SetDirection(direction);
// Specify grid parameters
double scale = 255.0;
gridImage->SetScale(scale);
ITK_TEST_SET_GET_VALUE(scale, gridImage->GetScale());
auto sigmaValue = static_cast<GridSourceType::ArrayType::ValueType>(std::stod(argv[3]));
GridSourceType::ArrayType sigma;
sigma.Fill(sigmaValue);
auto variableSigma = static_cast<bool>(std::stoi(argv[4]));
if (variableSigma)
{
if (sigma.Size() > 2)
{
sigma[1] = sigma[0] + 4.0;
sigma[2] = sigma[0] + 5.0;
}
}
gridImage->SetSigma(sigma);
ITK_TEST_SET_GET_VALUE(sigma, gridImage->GetSigma());
auto spacing = static_cast<GridSourceType::ArrayType::ValueType>(std::stod(argv[5]));
GridSourceType::ArrayType gridSpacing;
gridSpacing.Fill(spacing);
auto variableGridSpacing = static_cast<bool>(std::stoi(argv[6]));
if (variableGridSpacing)
{
for (unsigned int i = 0; i < gridSpacing.Size(); ++i)
{
gridSpacing[i] = gridSpacing[0] / 2.0;
}
}
gridImage->SetGridSpacing(gridSpacing);
ITK_TEST_SET_GET_VALUE(gridSpacing, gridImage->GetGridSpacing());
auto offset = static_cast<GridSourceType::ArrayType::ValueType>(std::stod(argv[7]));
GridSourceType::ArrayType gridOffset;
gridOffset.Fill(offset);
gridImage->SetGridOffset(gridOffset);
ITK_TEST_SET_GET_VALUE(gridOffset, gridImage->GetGridOffset());
auto gridAllDimensions = static_cast<bool>(std::stoi(argv[8]));
GridSourceType::BoolArrayType whichDimension;
whichDimension.Fill(gridAllDimensions);
bool toggleLastGridDimension = std::stod(argv[9]);
if (toggleLastGridDimension)
{
whichDimension[ImageDimension - 1] = !gridAllDimensions;
}
gridImage->SetWhichDimensions(whichDimension);
ITK_TEST_SET_GET_VALUE(whichDimension, gridImage->GetWhichDimensions());
auto useBSplineKernel = static_cast<bool>(std::stoi(argv[10]));
if (useBSplineKernel)
{
unsigned int bSplineOrder = std::stoi(argv[11]);
// Specify B-Spline function
if (bSplineOrder == 3)
{
using KernelType = itk::BSplineKernelFunction<3>;
auto kernel = KernelType::New();
gridImage->SetKernelFunction(kernel);
}
else
{
using KernelType = itk::BSplineKernelFunction<0>;
auto kernel = KernelType::New();
gridImage->SetKernelFunction(kernel);
}
}
itk::SimpleFilterWatcher watcher(gridImage, "GridImageSource");
ITK_TRY_EXPECT_NO_EXCEPTION(gridImage->Update());
using WriterType = itk::ImageFileWriter<ImageType>;
auto writer = WriterType::New();
writer->SetFileName(argv[1]);
writer->SetInput(gridImage->GetOutput());
ITK_TRY_EXPECT_NO_EXCEPTION(writer->Update());
std::cout << "Test finished" << std::endl;
return EXIT_SUCCESS;
}
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