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/*=========================================================================
Program: Insight Segmentation & Registration Toolkit
Module: $RCSfile: itkMatrixIndexSelectionImageFilterTest.cxx,v $
Language: C++
Date: $Date: 2006-01-15 04:28:36 $
Version: $Revision: 1.2 $
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 <fstream>
#include "itkMatrixIndexSelectionImageFilter.h"
#include "itkImageFileWriter.h"
#include "itkImageRegionIterator.h"
#include "itkMatrix.h"
int itkMatrixIndexSelectionImageFilterTest(int argc, char* argv[] )
{
if( argc < 1 )
{
std::cerr << "Missing Parameters " << std::endl;
std::cerr << "Usage: " << argv[0];
std::cerr << " outputImage" << std::endl;
return EXIT_FAILURE;
}
const unsigned int Dimension = 2;
typedef itk::Matrix<unsigned short,Dimension,Dimension> PixelType;
typedef unsigned char OutputPixelType;
typedef itk::Image<PixelType, Dimension> ImageType;
typedef itk::Image<OutputPixelType, Dimension> OutputImageType;
// create a matrix image
ImageType::Pointer image = ImageType::New();
ImageType::RegionType region;
ImageType::SizeType size; size.Fill(100);
ImageType::IndexType index; index.Fill(0);
region.SetSize(size);
region.SetIndex(index);
image->SetRegions( region );
image->Allocate();
size = region.GetSize();
index = region.GetIndex();
unsigned int width = size[0];
unsigned int height = size[1];
// populate upper half of image
size[0] = width;
size[1] = height / 2;
index[0] = 0;
index[1] = 0;
region.SetSize(size);
region.SetIndex(index);
{
PixelType pixel;
pixel[0][0] = 128; pixel[0][1] = 192;
pixel[1][0] = 0; pixel[1][1] = 64;
std::cout << "pixel: " << pixel << std::endl;
itk::ImageRegionIterator<ImageType> it(image, region);
std::cout << region;
it.GoToBegin();
while (!it.IsAtEnd())
{
it.Set(pixel);
++it;
}
}
// populate lower half of image
index[0] = 0;
index[1] = height / 2;
region.SetSize(size);
region.SetIndex(index);
{
PixelType pixel;
pixel[0][0] = 64; pixel[0][1] = 16;
pixel[1][0] = 255; pixel[1][1] = 192;
std::cout << "pixel: " << pixel << std::endl;
std::cout << region;
itk::ImageRegionIterator<ImageType> it(image, region);
it.GoToBegin();
while (!it.IsAtEnd()) {
it.Set(pixel);
++it;
}
}
typedef itk::MatrixIndexSelectionImageFilter<ImageType,OutputImageType> SelectionFilterType;
SelectionFilterType::Pointer filter = SelectionFilterType::New();
filter->SetInput(image);
filter->SetIndices(0,1);
filter->SetFunctor(filter->GetFunctor());
typedef itk::ImageFileWriter<OutputImageType> WriterType;
WriterType::Pointer writer = WriterType::New();
try
{
writer->SetInput(filter->GetOutput());
writer->SetFileName(argv[1]);
writer->Update();
}
catch( itk::ExceptionObject & excep )
{
std::cerr << "Exception caught !" << std::endl;
std::cerr << excep << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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