ITK  5.3.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageCompare/SquaredDifferenceOfTwoImages/Code.cxx
/*=========================================================================
*
* Copyright NumFOCUS
*
* 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 "itkImage.h"
using UnsignedCharImageType = itk::Image<unsigned char, 2>;
using FloatImageType = itk::Image<float, 2>;
static void
CreateImage1(UnsignedCharImageType::Pointer image);
static void
CreateImage2(UnsignedCharImageType::Pointer image);
int
main(int, char *[])
{
UnsignedCharImageType::Pointer image1 = UnsignedCharImageType::New();
CreateImage1(image1);
UnsignedCharImageType::Pointer image2 = UnsignedCharImageType::New();
CreateImage2(image2);
using SquaredDifferenceImageFilterType =
SquaredDifferenceImageFilterType::Pointer squaredDifferenceFilter = SquaredDifferenceImageFilterType::New();
squaredDifferenceFilter->SetInput1(image1);
squaredDifferenceFilter->SetInput2(image2);
squaredDifferenceFilter->Update();
return EXIT_SUCCESS;
}
void
CreateImage1(UnsignedCharImageType::Pointer image)
{
start.Fill(0);
size.Fill(10);
region.SetSize(size);
region.SetIndex(start);
image->SetRegions(region);
image->Allocate();
while (!imageIterator.IsAtEnd())
{
imageIterator.Set(255);
++imageIterator;
}
}
void
CreateImage2(UnsignedCharImageType::Pointer image)
{
// Create an image with 2 connected components
start.Fill(0);
size.Fill(10);
region.SetSize(size);
region.SetIndex(start);
image->SetRegions(region);
image->Allocate();
while (!imageIterator.IsAtEnd())
{
imageIterator.Set(100);
++imageIterator;
}
}
itk::SquaredDifferenceImageFilter
Implements pixel-wise the computation of squared difference.
Definition: itkSquaredDifferenceImageFilter.h:84
itk::GTest::TypedefsAndConstructors::Dimension2::SizeType
ImageBaseType::SizeType SizeType
Definition: itkGTestTypedefsAndConstructors.h:49
itkImage.h
itkImageRegionIterator.h
itk::Index::Fill
void Fill(IndexValueType value)
Definition: itkIndex.h:271
itk::Size::Fill
void Fill(SizeValueType value)
Definition: itkSize.h:211
itk::ImageRegionIterator
A multi-dimensional iterator templated over image type that walks a region of pixels.
Definition: itkImageRegionIterator.h:80
itk::GTest::TypedefsAndConstructors::Dimension2::IndexType
ImageBaseType::IndexType IndexType
Definition: itkGTestTypedefsAndConstructors.h:50
itk::GTest::TypedefsAndConstructors::Dimension2::RegionType
ImageBaseType::RegionType RegionType
Definition: itkGTestTypedefsAndConstructors.h:54
itkSquaredDifferenceImageFilter.h
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:88
itk::ImageRegion::SetSize
void SetSize(const SizeType &size)
Definition: itkImageRegion.h:174