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/*=========================================================================
*
* Copyright Insight Software Consortium
*
* 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
*
* http://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 "itkTestingComparisonImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkSimpleFilterWatcher.h"
#ifdef ITKV3_COMPATIBILITY
#include "itkDifferenceImageFilter.h"
#endif
int itkTestingComparisonImageFilterTest(int argc, char *argv [] )
{
if( argc < 6 )
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0];
std::cerr << " inputImageFile1 inputImageFile2 outputImage threshold radius" << std::endl;
return EXIT_FAILURE;
}
// Test using an unsigned integral pixel type and generate a signed
// integral pixel type
typedef signed short InputPixelType;
typedef unsigned short OutputPixelType;
const unsigned int Dimension = 2;
typedef itk::Image< InputPixelType, Dimension > InputImageType;
typedef itk::Image< OutputPixelType, Dimension > OutputImageType;
typedef itk::ImageFileReader< InputImageType > ReaderType;
ReaderType::Pointer reader1 = ReaderType::New();
ReaderType::Pointer reader2 = ReaderType::New();
reader1->SetFileName( argv[1] );
reader2->SetFileName( argv[2] );
#ifdef ITKV3_COMPATIBILITY
typedef itk::DifferenceImageFilter<
InputImageType,
OutputImageType > DiffFilterType;
DiffFilterType::Pointer testInit=DiffFilterType::New();
// setup the testInit
testInit->SetDifferenceThreshold( atoi( argv[4] ) );
testInit->SetToleranceRadius( atoi( argv[5] ) );
// wire the pipeline
testInit->SetValidInput( reader1->GetOutput() );
testInit->SetTestInput( reader2->GetOutput() );
testInit->Update();
#endif
// Define the filter
typedef itk::Testing::ComparisonImageFilter<
InputImageType,
OutputImageType > FilterType;
FilterType::Pointer filter = FilterType::New();
// setup the filter
filter->SetDifferenceThreshold( atoi( argv[4] ) );
filter->SetToleranceRadius( atoi( argv[5] ) );
itk::SimpleFilterWatcher watcher( filter, "Difference");
// wire the pipeline
filter->SetValidInput( reader1->GetOutput() );
filter->SetTestInput( reader2->GetOutput() );
// Write the output
typedef itk::ImageFileWriter< OutputImageType > WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetInput( filter->GetOutput() );
writer->SetFileName( argv[3] );
try
{
writer->Update();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << "Exception : " << excp << std::endl;
return EXIT_FAILURE;
}
unsigned long numberOfPixelsWithDifferences =
filter->GetNumberOfPixelsWithDifferences();
std::cout << "Number of pixels with differences = ";
std::cout << numberOfPixelsWithDifferences << std::endl;
return EXIT_SUCCESS;
}
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