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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 "itkImageRegionIteratorWithIndex.h"
#include "itkMaskNegatedImageFilter.h"
int itkMaskNegatedImageFilterTest(int, char* [] )
{
// Define the dimension of the images
const unsigned int myDimension = 3;
// Declare the types of the images
typedef itk::Image<float, myDimension> InputImageType;
typedef itk::Image<unsigned short, myDimension> MaskImageType;
typedef itk::Image<float, myDimension> OutputImageType;
// Declare the type of the index to access images
typedef itk::Index<myDimension> myIndexType;
// Declare the type of the size
typedef itk::Size<myDimension> mySizeType;
// Declare the type of the Region
typedef itk::ImageRegion<myDimension> myRegionType;
// Create two images
InputImageType::Pointer inputImage = InputImageType::New();
MaskImageType::Pointer inputMask = MaskImageType::New();
// Define their size, and start index
mySizeType size;
size[0] = 2;
size[1] = 2;
size[2] = 2;
myIndexType start;
start[0] = 0;
start[1] = 0;
start[2] = 0;
myRegionType region;
region.SetIndex( start );
region.SetSize( size );
// Initialize the image
inputImage->SetLargestPossibleRegion( region );
inputImage->SetBufferedRegion( region );
inputImage->SetRequestedRegion( region );
inputImage->Allocate();
// Initialize the mask
inputMask->SetLargestPossibleRegion( region );
inputMask->SetBufferedRegion( region );
inputMask->SetRequestedRegion( region );
inputMask->Allocate();
// Declare Iterator types apropriated for each image
typedef itk::ImageRegionIteratorWithIndex<InputImageType> InputIteratorType;
typedef itk::ImageRegionIteratorWithIndex<MaskImageType> MaskIteratorType;
typedef itk::ImageRegionIteratorWithIndex<OutputImageType> OutputIteratorType;
// Create one iterator for Image A (this is a light object)
InputIteratorType inputIterator( inputImage, inputImage->GetBufferedRegion() );
// Initialize the content of Image A
std::cout << "First operand " << std::endl;
while( !inputIterator.IsAtEnd() )
{
inputIterator.Set( 255.0 );
std::cout << inputIterator.Get() << std::endl;
++inputIterator;
}
// Create one iterator for Image B (this is a light object)
MaskIteratorType maskIterator( inputMask, inputMask->GetBufferedRegion() );
// Initialize the content of Image B
// Set to mask first 2 pixels and last 2 pixels and leave the rest as is
std::cout << "Second operand " << std::endl;
for(unsigned int i = 0; i<2; ++i, ++maskIterator) maskIterator.Set( 0 );
while( !maskIterator.IsAtEnd() )
{
maskIterator.Set( 3 );
++maskIterator;
}
for(unsigned int i = 0; i< 3; ++i, --maskIterator) maskIterator.Set( 0 );
maskIterator.GoToBegin();
while( !maskIterator.IsAtEnd() )
{
std::cout << maskIterator.Get() << std::endl;
++maskIterator;
}
// Declare the type for the MaskNegated filter
typedef itk::MaskNegatedImageFilter<
InputImageType,
MaskImageType,
OutputImageType > myFilterType;
// Create an MaskNegated Filter
myFilterType::Pointer filter = myFilterType::New();
// Connect the input images
filter->SetInput1( inputImage );
filter->SetInput2( inputMask );
filter->SetOutsideValue( 50 );
// Get the Smart Pointer to the Filter Output
OutputImageType::Pointer outputImage = filter->GetOutput();
// Execute the filter
filter->Update();
filter->SetFunctor(filter->GetFunctor());
// Create an iterator for going through the image output
OutputIteratorType outputIterator(outputImage, outputImage->GetBufferedRegion());
// Print the content of the result image
std::cout << " Result " << std::endl;
while( !outputIterator.IsAtEnd() )
{
std::cout << outputIterator.Get() << std::endl;
++outputIterator;
}
filter->Print( std::cout );
// Test named mutator/accessors
{
filter->SetMaskImage( inputMask );
myFilterType::MaskImageType::ConstPointer retrievedMask = filter->GetMaskImage();
if(retrievedMask != inputMask)
{
std::cerr << "Mask not retrieved successfully!" << std::endl;
return EXIT_FAILURE;
}
}
// All objects should be automatically destroyed at this point
return EXIT_SUCCESS;
}
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