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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.
*
*=========================================================================*/
// General includes
#include <iostream>
// ITK includes
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkComposeImageFilter.h"
#include "itkTestingMacros.h"
int
itkComposeRGBAImageFilterTest(int argc, char * argv[])
{
if (argc < 6)
{
std::cerr << "Error: missing arguments" << std::endl;
std::cerr << "Usage: " << std::endl;
std::cerr << itkNameOfTestExecutableMacro(argv) << " outputFile inputFileR inputFileG inputFileB inputFileA"
<< std::endl;
}
try
{
// ARGUMENTS:
// argv[0] = Executable name
// argv[1] = Output file name and path
// argv[2] = Input 1 file name and path
// argv[2] = Input 2 file name and path
// argv[2] = Input 3 file name and path
// argv[2] = Input 4 file name and path
// Get arguments
char * OutputFilename = argv[1];
char * Input1Filename = argv[2];
char * Input2Filename = argv[3];
char * Input3Filename = argv[4];
char * Input4Filename = argv[5];
// Typedefs
using ScalarPixelType = unsigned char;
constexpr unsigned int Dimension = 2;
using RGBAPixelType = itk::RGBAPixel<ScalarPixelType>;
using ScalarImageType = itk::Image<ScalarPixelType, Dimension>;
using RGBAImageType = itk::Image<RGBAPixelType, Dimension>;
using ReaderType = itk::ImageFileReader<ScalarImageType>;
using WriterType = itk::ImageFileWriter<RGBAImageType>;
using ComposeFilterType = itk::ComposeImageFilter<ScalarImageType, RGBAImageType>;
// Read input1
auto reader1 = ReaderType::New();
reader1->SetFileName(Input1Filename);
reader1->Update();
// Read input2
auto reader2 = ReaderType::New();
reader2->SetFileName(Input2Filename);
reader2->Update();
// Read input3
auto reader3 = ReaderType::New();
reader3->SetFileName(Input3Filename);
reader3->Update();
// Read input4
auto reader4 = ReaderType::New();
reader4->SetFileName(Input4Filename);
reader4->Update();
// Test ComposeRGBA filter
auto filterCompose = ComposeFilterType::New();
filterCompose->SetInput(0, reader1->GetOutput());
filterCompose->SetInput(1, reader2->GetOutput());
filterCompose->SetInput(2, reader3->GetOutput());
filterCompose->SetInput(3, reader4->GetOutput());
filterCompose->Update();
// Write output
auto writer = WriterType::New();
writer->SetFileName(OutputFilename);
writer->SetInput(filterCompose->GetOutput());
writer->Update();
}
catch (const itk::ExceptionObject & err)
{
std::cerr << "ExceptionObject caught !" << std::endl;
std::cerr << err << std::endl;
return EXIT_FAILURE;
}
// Return
return EXIT_SUCCESS;
}
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