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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 "itkFilterWatcher.h"
#include "itkGaussianImageSource.h"
#include "itkTestingMacros.h"
#include "itkMath.h"
int itkGaussianImageSourceTest(int, char* [] )
{
// This can be changed!
const unsigned int Dimension = 3;
typedef unsigned char PixelType;
// Image typedef
typedef itk::Image< PixelType, Dimension > ImageType;
// Create a gaussian image source
typedef itk::GaussianImageSource< ImageType > GaussianSourceType;
GaussianSourceType::Pointer source = GaussianSourceType::New();
FilterWatcher watcher(source, "source");
ImageType::SpacingValueType spacing[] = { 1.2f, 1.3f, 1.4f };
ImageType::PointValueType origin[] = { 1.0f, 4.0f, 2.0f };
ImageType::SizeValueType size[] = { 130, 150, 120 };
GaussianSourceType::ArrayType mean;
mean[0] = size[0]/2.0f + origin[0];
mean[1] = size[1]/2.0f + origin[1];
mean[2] = size[2]/2.0f + origin[2];
GaussianSourceType::ArrayType sigma;
sigma[0] = 25.0f;
sigma[1] = 35.0f;
sigma[2] = 55.0f;
source->SetSize( size );
source->SetOrigin( origin );
source->SetSpacing( spacing );
source->SetMean( mean );
source->SetSigma( sigma );
// Test the get macros as well (booorrring...)
source->GetSize();
source->GetSpacing();
source->GetOrigin();
source->GetDirection();
source->GetScale();
source->GetNormalized();
source->GetSigma();
source->GetMean();
// Test the get/set parameters
GaussianSourceType::ParametersType params = source->GetParameters();
if ( params.GetSize() != 7 )
{
std::cerr << "Incorrect number of parameters. Expected 7, got "
<< params.GetSize() << "." << std::endl;
return EXIT_FAILURE;
}
if ( itk::Math::NotAlmostEquals( params[0], sigma[0] ) ||
itk::Math::NotAlmostEquals( params[1], sigma[1] ) ||
itk::Math::NotAlmostEquals( params[2], sigma[2] ) )
{
std::cerr << "Parameters have incorrect sigma value." << std::endl;
return EXIT_FAILURE;
}
if ( itk::Math::NotAlmostEquals( params[3], mean[0] ) ||
itk::Math::NotAlmostEquals( params[4], mean[1] ) ||
itk::Math::NotAlmostEquals( params[5], mean[2] ) )
{
std::cerr << "Parameters have incorrect mean value." << std::endl;
return EXIT_FAILURE;
}
if ( itk::Math::NotAlmostEquals( params[6], source->GetScale() ) )
{
std::cerr << "Parameters have incorrect scale value." << std::endl;
return EXIT_FAILURE;
}
params[0] = 12.0;
params[1] = 13.0;
params[2] = 14.0;
params[3] = 22.0;
params[4] = 32.0;
params[5] = 42.0;
params[6] = 55.5;
source->SetParameters( params );
if ( itk::Math::NotAlmostEquals( source->GetSigma()[0], params[0] ) ||
itk::Math::NotAlmostEquals( source->GetSigma()[1], params[1] ) ||
itk::Math::NotAlmostEquals( source->GetSigma()[2], params[2] ) )
{
std::cerr << "Sigma disagrees with parameters array." << std::endl;
std::cerr << "Sigma: " << source->GetSigma() << ", parameters: ["
<< params[0] << ", " << params[1] << ", " << params[2]
<< "]" << std::endl;
return EXIT_FAILURE;
}
if ( itk::Math::NotAlmostEquals( source->GetMean()[0], params[3] ) ||
itk::Math::NotAlmostEquals( source->GetMean()[1], params[4] ) ||
itk::Math::NotAlmostEquals( source->GetMean()[2], params[5] ) )
{
std::cerr << "Mean disagrees with parameters array." << std::endl;
std::cerr << "Mean: " << source->GetMean() << ", parameters: ["
<< params[3] << ", " << params[4] << ", " << params[5]
<< "]" << std::endl;
return EXIT_FAILURE;
}
if ( itk::Math::NotAlmostEquals( source->GetScale(), params[6] ) )
{
std::cerr << "Scale disagrees with parameters array." << std::endl;
std::cerr << "Scale: " << source->GetScale() << ", parameters: "
<< params[6] << std::endl;
return EXIT_FAILURE;
}
// Get the output of the source
ImageType::ConstPointer image = source->GetOutput();
// Run the pipeline
TRY_EXPECT_NO_EXCEPTION( source->Update() );
// Exercise the print method
std::cout << image << std::endl;
// Instantiate 1D case.
typedef itk::Image< PixelType, 1 > Image1DType;
typedef itk::GaussianImageSource< Image1DType > GaussianSource1DType;
GaussianSource1DType::Pointer source1D = GaussianSource1DType::New();
return EXIT_SUCCESS;
}
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