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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkCannyEdgeDetectionImageFilterTest2.cxx,v $
Language: C++
Date: $Date: 2009-08-17 13:23:31 $
Version: $Revision: 1.1 $
Copyright (c) Insight Software Consortium. All rights reserved.
See ITKCopyright.txt or http://www.itk.org/HTML/Copyright.htm for details.
This software is distributed WITHOUT ANY WARRANTY; without even
the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
PURPOSE. See the above copyright notices for more information.
=========================================================================*/
#if defined(_MSC_VER)
#pragma warning ( disable : 4786 )
#endif
#include <iostream>
#include "itkImage.h"
#include "itkCannyEdgeDetectionImageFilter.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkVector.h"
#include "itkSimpleFilterWatcher.h"
#include "itkRescaleIntensityImageFilter.h"
// This test is was written to test bug 9431
//
// It run a filter multiple times and expects the output to be the
// same when run with the same parameters. The two output images
// should be identical
int itkCannyEdgeDetectionImageFilterTest2(int argc, char * argv[] )
{
if(argc < 4)
{
std::cerr << "Usage: " << argv[0] << " InputImage OutputImage1 OutputImage2\n";
return -1;
}
const unsigned int dimension = 2;
typedef float PixelType;
typedef itk::Image<float, dimension> InputImage;
typedef itk::Image<unsigned char, dimension> OutputImage;
itk::ImageFileReader<InputImage>::Pointer input
= itk::ImageFileReader<InputImage>::New();
input->SetFileName(argv[1]);
// Set up filter
itk::CannyEdgeDetectionImageFilter<InputImage, InputImage>::Pointer
filter =
itk::CannyEdgeDetectionImageFilter<InputImage, InputImage>::New();
filter->SetInput(input->GetOutput());
filter->SetVariance(1.0f);
filter->SetMaximumError(.01f);
filter->SetUpperThreshold(25);
filter->SetLowerThreshold(10);
itk::RescaleIntensityImageFilter<InputImage, OutputImage>::Pointer
rescale =
itk::RescaleIntensityImageFilter<InputImage, OutputImage>::New();
rescale->SetInput(filter->GetOutput());
rescale->SetOutputMinimum(0);
rescale->SetOutputMaximum(255);
itk::ImageFileWriter<OutputImage>::Pointer writer;
writer = itk::ImageFileWriter<OutputImage>::New();
writer->SetInput( rescale->GetOutput() );
try
{
// Generate test image
writer->SetFileName( argv[2] );
writer->Update();
// set canny filter to another value
filter->SetUpperThreshold(20);
filter->SetLowerThreshold(5);
rescale->Update();
// set it back expecting the same results
filter->SetUpperThreshold(25);
filter->SetLowerThreshold(10);
// Generate test image
writer->SetFileName( argv[3] );
writer->Update();
}
catch(itk::ExceptionObject &err)
{
(&err)->Print(std::cerr);
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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