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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 "itkOptimizerParameters.h"
#include "itkImageVectorOptimizerParametersHelper.h"
#include "itkTestingMacros.h"
#include "itkMath.h"
namespace{
typedef double ValueType;
const itk::SizeValueType ImageDimension = 2;
const itk::SizeValueType VectorDimension = 4;
typedef itk::Vector< ValueType, VectorDimension > VectorPixelType;
typedef itk::Image< VectorPixelType, ImageDimension > ImageVectorType;
typedef ImageVectorType::Pointer ImageVectorPointer;
typedef ImageVectorType::RegionType RegionType;
typedef RegionType::SizeType SizeType;
typedef ImageVectorType::IndexType IndexType;
typedef ImageVectorType::PixelContainer VectorPixelContainer;
typedef itk::OptimizerParameters< ValueType > OptimizerParametersType;
typedef itk::ImageVectorOptimizerParametersHelper< ValueType,
VectorDimension,
ImageDimension >
ImageVectorOptimizerParametersHelperType;
int testMemoryAccess( OptimizerParametersType& params,
ImageVectorPointer imageOfVectors,
itk::SizeValueType dimLength )
{
int result = EXIT_SUCCESS;
for (itk::SizeValueType y = 0; y < dimLength; y++)
{
for (itk::SizeValueType x = 0; x < dimLength; x++)
{
IndexType index;
index[0] = x;
index[1] = y;
// The image index returns a N-dim vector, so have to check each
// element against the values returned by parameter object.
itk::OffsetValueType offset = (x + y * dimLength) * VectorDimension;
VectorPixelType vectorpixel = imageOfVectors->GetPixel( index );
for(itk::SizeValueType ind=0; ind < VectorDimension; ind++)
{
ValueType paramsValue = params[offset+ind];
if( itk::Math::NotExactlyEquals(vectorpixel[ind], paramsValue) )
{
std::cout << "VectorImage pixel value does not match params value."
<< "vectorpixel[" << ind << "]: " << vectorpixel[ind]
<< std::endl
<< "params[" << offset+ind << "]: "
<< paramsValue << std::endl;
result = EXIT_FAILURE;
}
}
}
}
return result;
}
}
/******************************************************/
int itkImageVectorOptimizerParametersHelperTest(int, char *[])
{
int result = EXIT_SUCCESS;
ImageVectorPointer imageOfVectors = ImageVectorType::New();
IndexType start;
start.Fill( 0 );
SizeType size;
const int dimLength = 3;
size.Fill( dimLength );
RegionType region;
region.SetSize( size );
region.SetIndex( start );
imageOfVectors->SetRegions( region );
imageOfVectors->Allocate();
ImageVectorType::PointType origin;
ImageVectorType::SpacingType spacing;
origin.Fill( 0.0 );
spacing.Fill( 1.0 );
imageOfVectors->SetOrigin( origin );
imageOfVectors->SetSpacing( spacing );
ValueType vectorinitvalues[VectorDimension] = {0.0, 0.1, 0.2, 0.3};
VectorPixelType vectorvalues(vectorinitvalues);
//
// Fill up the image values with the function
//
// Intensity = f(x,y) = x + 3 * y
//
//
for (int y = 0; y < dimLength; y++)
{
for (int x = 0; x < dimLength; x++)
{
IndexType index;
index[0] = x;
index[1] = y;
const ValueType value = x + y * dimLength;
VectorPixelType & vectorpixel = imageOfVectors->GetPixel( index );
vectorpixel.Fill( value );
vectorpixel += vectorvalues;
std::cout << value << " ";
}
std::cout << std::endl;
}
// Create a parameter object and assign the ImageVector helper.
OptimizerParametersType params;
ImageVectorOptimizerParametersHelperType* imageVectorParamsHelper =
new ImageVectorOptimizerParametersHelperType;
//Assign the helper to the parameter object.
//OptimizerParameters object will manage the helper once its been set.
params.SetHelper( imageVectorParamsHelper );
//Set the image in the helper. It will point the parameter data pointer
// to the image data.
params.SetParametersObject( imageOfVectors );
result = testMemoryAccess( params, imageOfVectors, dimLength );
//Test MoveDataPointer
itk::Array<ValueType> array( imageOfVectors->GetPixelContainer()->Size() );
array.Fill(1.23);
params.MoveDataPointer( array.data_block() );
//Test null image pointer
params.SetParametersObject( ITK_NULLPTR );
TRY_EXPECT_EXCEPTION( params.MoveDataPointer( array.data_block() ) );
//Test setting an image of wrong type
typedef itk::Image<char, 2> BadImageType;
BadImageType::Pointer badImage = BadImageType::New();
TRY_EXPECT_EXCEPTION( params.SetParametersObject( badImage ) );
return result;
}
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