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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 <fstream>
#include "itkMatrixIndexSelectionImageFilter.h"
#include "itkImageFileWriter.h"
#include "itkTestingMacros.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;
}
// Define the dimension of the images
const unsigned int Dimension = 2;
// Declare the pixel types of the images
typedef itk::Matrix< unsigned short, Dimension, Dimension > PixelType;
typedef unsigned char OutputPixelType;
// Declare the types of the images
typedef itk::Image< PixelType, Dimension > InputImageType;
typedef itk::Image< OutputPixelType, Dimension > OutputImageType;
// Create a matrix image
InputImageType::Pointer image = InputImageType::New();
InputImageType::RegionType region;
InputImageType::SizeType size;
size.Fill( 100 );
InputImageType::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];
size[0] = width;
size[1] = height / 2;
// Populate upper half of image
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;
itk::ImageRegionIterator< InputImageType > it( image, 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;
itk::ImageRegionIterator< InputImageType > it( image, region );
it.GoToBegin();
while( !it.IsAtEnd() )
{
it.Set( pixel );
++it;
}
}
typedef itk::MatrixIndexSelectionImageFilter< InputImageType, OutputImageType >
SelectionFilterType;
SelectionFilterType::Pointer filter = SelectionFilterType::New();
EXERCISE_BASIC_OBJECT_METHODS( filter, MatrixIndexSelectionImageFilter,
UnaryFunctorImageFilter );
filter->SetInput( image );
unsigned int indexA = 0;
unsigned int indexB = 1;
filter->SetIndices( indexA, indexB );
unsigned int testIndexA;
unsigned int testIndexB;
filter->GetIndices( testIndexA, testIndexB );
if( indexA != testIndexA || indexB != testIndexB )
{
std::cerr << "Error " << std::endl;
std::cerr << " Expected indices: ("
<< indexA << ", "<< indexB << ")" << std::endl;
std::cerr << " differ from ";
std::cerr << " obtained indices: ("
<< testIndexA << ", "<< testIndexB << ")" << std::endl;
return EXIT_FAILURE;
}
filter->SetFunctor( filter->GetFunctor() );
typedef itk::ImageFileWriter< OutputImageType > WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetFileName( argv[1] );
writer->SetInput( filter->GetOutput() );
TRY_EXPECT_NO_EXCEPTION( writer->Update() );
return EXIT_SUCCESS;
}
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