ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageGrid/ResampleAVectorImage/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"
#include "itkRGBPixel.h"
int
main(int argc, char * argv[])
{
if (argc != 3)
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0];
std::cerr << " <InputFileName> <OutputFileName>";
std::cerr << std::endl;
return EXIT_FAILURE;
}
const char * inputFileName = argv[1];
const char * outputFileName = argv[2];
constexpr unsigned int Dimension = 2;
using PixelComponentType = unsigned char;
using ReaderType = itk::ImageFileReader<ImageType>;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName(inputFileName);
FilterType::Pointer filter = FilterType::New();
InterpolatorType::Pointer interpolator = InterpolatorType::New();
filter->SetInterpolator(interpolator);
TransformType::Pointer transform = TransformType::New();
filter->SetTransform(transform);
PixelType defaultValue;
defaultValue.Fill(50);
filter->SetDefaultPixelValue(defaultValue);
ImageType::SpacingType spacing;
spacing[0] = .5; // pixel spacing in millimeters along X
spacing[1] = .5; // pixel spacing in millimeters along Y
filter->SetOutputSpacing(spacing);
origin[0] = 30.0; // X space coordinate of origin
origin[1] = 40.0; // Y space coordinate of origin
filter->SetOutputOrigin(origin);
direction.SetIdentity();
filter->SetOutputDirection(direction);
size[0] = 300; // number of pixels along X
size[1] = 300; // number of pixels along Y
filter->SetSize(size);
filter->SetInput(reader->GetOutput());
using WriterType = itk::ImageFileWriter<ImageType>;
WriterType::Pointer writer = WriterType::New();
writer->SetFileName(outputFileName);
writer->SetInput(filter->GetOutput());
try
{
writer->Update();
}
catch (itk::ExceptionObject & error)
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
itk::Matrix::SetIdentity
void SetIdentity()
Definition: itkMatrix.h:192
itk::RGBPixel
Represent Red, Green and Blue components for color images.
Definition: itkRGBPixel.h:58
itk::IdentityTransform
Implementation of an Identity Transform.
Definition: itkIdentityTransform.h:50
itk::GTest::TypedefsAndConstructors::Dimension2::DirectionType
ImageBaseType::DirectionType DirectionType
Definition: itkGTestTypedefsAndConstructors.h:52
itkRGBPixel.h
itkLinearInterpolateImageFunction.h
itk::GTest::TypedefsAndConstructors::Dimension2::PointType
ImageBaseType::PointType PointType
Definition: itkGTestTypedefsAndConstructors.h:51
itkImageFileReader.h
itk::GTest::TypedefsAndConstructors::Dimension2::SizeType
ImageBaseType::SizeType SizeType
Definition: itkGTestTypedefsAndConstructors.h:49
itkImage.h
itk::ImageFileReader
Data source that reads image data from a single file.
Definition: itkImageFileReader.h:75
itk::LinearInterpolateImageFunction
Linearly interpolate an image at specified positions.
Definition: itkLinearInterpolateImageFunction.h:50
itk::ImageFileWriter
Writes image data to a single file.
Definition: itkImageFileWriter.h:87
itkIdentityTransform.h
itkImageFileWriter.h
itk::Size::SetSize
void SetSize(const SizeValueType val[VDimension])
Definition: itkSize.h:179
itk::ResampleImageFilter
Resample an image via a coordinate transform.
Definition: itkResampleImageFilter.h:90
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:86
itkResampleImageFilter.h
itk::GTest::TypedefsAndConstructors::Dimension2::Dimension
constexpr unsigned int Dimension
Definition: itkGTestTypedefsAndConstructors.h:44