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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 "itkImageFileReader.h"
#include "itkImageFileWriter.h"
#include "itkSimpleFilterWatcher.h"
#include "itkLabelToRGBImageFilter.h"
int itkLabelToRGBImageFilterTest(int argc, char * argv[])
{
const int Dimension = 2;
if( argc < 3 )
{
std::cerr << "Missing Parameters " << std::endl;
std::cerr << "Usage: " << argv[0];
std::cerr << " LabelImage OutputImage" << std::endl;
return 1;
}
typedef unsigned char PixelType;
typedef itk::Image< PixelType, Dimension > ImageType;
typedef itk::RGBPixel<unsigned char> ColorPixelType;
typedef itk::Image< ColorPixelType, Dimension > ColorImageType;
typedef itk::ImageFileReader< ImageType > ReaderType;
//Read in the input image
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( argv[1] );
//Instantiate the filter
typedef itk::LabelToRGBImageFilter<
ImageType, ColorImageType> FilterType;
FilterType::Pointer filter = FilterType::New();
// Exercising Background Value methods
filter->SetBackgroundValue( 10 );
if( filter->GetBackgroundValue() != 10 )
{
std::cerr << "Background value Set/Get Problem" << std::endl;
return EXIT_FAILURE;
}
//Set the filter input and label images
filter->SetInput( reader->GetOutput() );
filter->SetBackgroundValue( 0 );
itk::SimpleFilterWatcher watcher(filter, "filter");
//Instantiate output image
typedef itk::ImageFileWriter< ColorImageType > WriterType;
WriterType::Pointer writer = WriterType::New();
writer->SetInput( filter->GetOutput() );
writer->SetFileName( argv[2] );
try
{
writer->Update();
}
catch( itk::ExceptionObject & excp )
{
std::cerr << excp << std::endl;
return EXIT_FAILURE;
}
// exercise the methods to change the colors
unsigned int numberOfColors1 = filter->GetNumberOfColors();
filter->AddColor( 1, 255, 255 );
unsigned int numberOfColors2 = filter->GetNumberOfColors();
if( numberOfColors2 != numberOfColors1 + 1 )
{
std::cerr << "Error in GetNumberOfColors() or AddColor() " << std::endl;
return EXIT_FAILURE;
}
filter->ResetColors();
filter->AddColor( 255, 255, 255 );
unsigned int numberOfColors3 = filter->GetNumberOfColors();
if( numberOfColors3 != 1 )
{
std::cerr << "Error in GetNumberOfColors() or ResetColors() or AddColor() " << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
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