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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 "itkPolylineMask2DImageFilter.h"
#include "itkPolyLineParametricPath.h"
#include "itkImageFileReader.h"
#include "itkImageFileWriter.h"
int itkPolylineMask2DImageFilterTest(int argc, char * argv [] )
{
if( argc < 3 )
{
std::cerr << "Error: missing arguments" << std::endl;
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << " inputFilename outputFilename " << std::endl;
return EXIT_FAILURE;
}
// Declare the types of the images
const unsigned int Dimension = 2;
typedef unsigned char PixelType;
typedef itk::Image<PixelType, Dimension> InputImageType;
typedef itk::Image<PixelType, Dimension> OutputImageType;
typedef itk::PolyLineParametricPath<Dimension> InputPolylineType;
// Read input image
typedef itk::ImageFileReader< InputImageType > ReaderType;
ReaderType::Pointer reader = ReaderType::New();
std::cout << "Input filename = " << argv[1] << std::endl;
reader->SetFileName( argv[1] );
try
{
reader->Update();
}
catch( itk::ExceptionObject & err )
{
std::cout << "Caught an unexpected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_FAILURE;
}
InputImageType::ConstPointer inputImage = reader->GetOutput();
// Create polyline
InputPolylineType::Pointer inputPolyline = InputPolylineType::New();
// We expect as input an image of 256 x 256 pixels with spacing 1,1.
// Initialize the polyline
typedef InputPolylineType::VertexType VertexType;
// Add vertices to the polyline
VertexType v0;
v0[0] = 64.0;
v0[1] = 128.0;
inputPolyline->AddVertex(v0);
VertexType v1;
v1[0] = 128.0;
v1[1] = 192.0;
inputPolyline->AddVertex(v1);
VertexType v2;
v2[0] = 192.0;
v2[1] = 128.0;
inputPolyline->AddVertex(v2);
VertexType v3;
v3[0] = 128.0;
v3[1] = 64.0;
inputPolyline->AddVertex(v3);
// Declare the type for the Mask image filter
typedef itk::PolylineMask2DImageFilter<
InputImageType, InputPolylineType,
OutputImageType > InputFilterType;
// Create a mask Filter
InputFilterType::Pointer filter = InputFilterType::New();
// Connect the input image
filter->SetInput1 ( inputImage );
// Connect the Polyline
filter->SetInput2 ( inputPolyline );
typedef itk::ImageFileWriter< OutputImageType > WriterType;
WriterType::Pointer writer = WriterType::New();
std::cout << "Output filename = " << argv[2] << std::endl;
writer->SetInput( filter->GetOutput() );
writer->SetFileName( argv[2] );
try
{
writer->Update();
}
catch( itk::ExceptionObject & err )
{
std::cout << "Caught an unexpected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_FAILURE;
}
std::cout << "Output image has been saved" << std::endl;
std::cout << std::endl;
// Now cause and exception
// Put a vertex outside of the image
VertexType ve;
ve[0] = 1000.0;
ve[1] = 128.0;
inputPolyline->AddVertex(ve);
try
{
filter->Update();
}
catch( itk::ExceptionObject & err )
{
std::cout << "Caught an expected exception. " << std::endl;
std::cout << err << std::endl;
return EXIT_SUCCESS;
}
return EXIT_FAILURE;
}
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