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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 "itkPolylineMask2DImageFilter.h"
#include "itkPolyLineParametricPath.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkTestingMacros.h"
int
itkPolylineMask2DImageFilterTest(int argc, char * argv[])
{
if (argc < 3)
{
std::cerr << "Error: missing arguments" << std::endl;
std::cerr << "Usage: " << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << " inputFilename outputFilename " << std::endl;
return EXIT_FAILURE;
}
// Declare the types of the images
constexpr unsigned int Dimension = 2;
using PixelType = unsigned char;
using InputImageType = itk::Image<PixelType, Dimension>;
using OutputImageType = itk::Image<PixelType, Dimension>;
using InputPolylineType = itk::PolyLineParametricPath<Dimension>;
// Read input image
using ReaderType = itk::ImageFileReader<InputImageType>;
auto reader = ReaderType::New();
std::cout << "Input filename = " << argv[1] << std::endl;
reader->SetFileName(argv[1]);
try
{
reader->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cout << "Caught an unexpected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_FAILURE;
}
InputImageType::ConstPointer inputImage = reader->GetOutput();
// Create polyline
auto inputPolyline = InputPolylineType::New();
// We expect as input an image of 256 x 256 pixels with spacing 1,1.
// Initialize the polyline
using VertexType = InputPolylineType::VertexType;
// Add vertices to the polyline
VertexType v0;
v0[0] = 64.0;
v0[1] = 128.0;
inputPolyline->AddVertex(v0);
VertexType v1;
v1[0] = 128.0;
v1[1] = 192.0;
inputPolyline->AddVertex(v1);
VertexType v2;
v2[0] = 192.0;
v2[1] = 128.0;
inputPolyline->AddVertex(v2);
VertexType v3;
v3[0] = 128.0;
v3[1] = 64.0;
inputPolyline->AddVertex(v3);
// Declare the type for the Mask image filter
using InputFilterType = itk::PolylineMask2DImageFilter<InputImageType, InputPolylineType, OutputImageType>;
// Create a mask Filter
auto filter = InputFilterType::New();
// Connect the input image
filter->SetInput1(inputImage);
// Connect the Polyline
filter->SetInput2(inputPolyline);
using WriterType = itk::ImageFileWriter<OutputImageType>;
auto writer = WriterType::New();
std::cout << "Output filename = " << argv[2] << std::endl;
writer->SetInput(filter->GetOutput());
writer->SetFileName(argv[2]);
try
{
writer->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cout << "Caught an unexpected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_FAILURE;
}
std::cout << "Output image has been saved" << std::endl;
std::cout << std::endl;
// Now cause and exception
// Put a vertex outside of the image
VertexType ve;
ve[0] = 1000.0;
ve[1] = 128.0;
inputPolyline->AddVertex(ve);
try
{
filter->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cout << "Caught an expected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
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