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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 "itkHardConnectedComponentImageFilter.h"
#include "itkFilterWatcher.h"
#include "itkImageFileWriter.h"
template< typename TPixel >
int DoIt( int argc, char* argv[], const std::string pixelType )
{
if( argc < 2 )
{
std::cerr << "Usage: " << argv[0] << " outputImagePrefix" << std::endl;
return EXIT_FAILURE;
}
const char * outputImageFileName = argv[1];
const int height = 20;
const int width = 20;
const unsigned int Dimension = 2;
typedef TPixel PixelType;
typedef itk::Image< bool, Dimension > InputImageType;
typedef itk::Image< PixelType, Dimension > OutputImageType;
typedef InputImageType::IndexType IndexType;
InputImageType::Pointer inputimg = InputImageType::New();
IndexType index;
index.Fill(0);
InputImageType::RegionType region;
InputImageType::SizeType size;
size[0] = width;
size[1] = height;
region.SetSize(size);
region.SetIndex(index);
inputimg->SetLargestPossibleRegion( region );
inputimg->SetBufferedRegion( region );
inputimg->SetRequestedRegion( region );
inputimg->Allocate();
int row, col;
IndexType myIndex;
for(row = 0;row<20;row++)
{
for(col = 0;col < 20;col++)
{
myIndex[1] = row;
myIndex[0] = col;
inputimg->SetPixel(myIndex,false);
}
}
for(row = 0;row<15;row++)
{
for(col = 0;col<20;col++)
{
myIndex[1] = row;
myIndex[0] = col;
inputimg->SetPixel(myIndex,true);
}
}
for(row = 0;row<10;row++)
{
for(col = 5;col<15;col++)
{
myIndex[1] = row;
myIndex[0] = col;
inputimg->SetPixel(myIndex,false);
}
}
for(row = 0;row<7;row++)
{
for(col = 7;col<12;col++)
{
myIndex[1] = row;
myIndex[0] = col;
inputimg->SetPixel(myIndex,true);
}
}
//InputImageType::IndexType Seed = {10,2};
typedef itk::HardConnectedComponentImageFilter< InputImageType, OutputImageType > FilterType;
typename FilterType::Pointer filter = FilterType::New();
FilterWatcher watcher(filter);
filter->SetInput(inputimg);
//filter->SetObjectSeed(Seed);
filter->Update();
typedef itk::ImageRegionIterator<InputImageType> inputIterator;
inputIterator it = inputIterator(inputimg, region);
std::cout << "Input Image" << std::endl;
it.GoToBegin();
for(int i = 0;i < height*width; i++)
{
if((i%width) == 0)
{
std::cout << std::endl;
}
std::cout << ( it.Get() ? 1 : 0 );
++it;
}
std::cout << std::endl;
typedef itk::ImageRegionIterator<OutputImageType> outputIterator;
outputIterator ot = outputIterator(filter->GetOutput(), region);
std::cout << std::endl << "Output Image" << std::endl;
ot.GoToBegin();
for(int i = 0;i < height*width; i++)
{
if((i%width) == 0)
{
std::cout << std::endl;
}
std::cout << ot.Get();
++ot;
}
std::cout << std::endl;
typedef itk::ImageFileWriter< OutputImageType > WriterType;
typename WriterType::Pointer writer = WriterType::New();
writer->SetFileName( std::string( outputImageFileName ) + pixelType + ".png" );
writer->SetInput( filter->GetOutput() );
try
{
writer->Update();
}
catch( itk::ExceptionObject & error )
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
int itkHardConnectedComponentImageFilterTest(int argc, char* argv[] )
{
return DoIt< unsigned char >( argc, argv, "UnsignedChar" )
|| DoIt< unsigned short >( argc, argv, "UnsignedShort" );
}
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