ITK  5.2.0
Insight Toolkit
SphinxExamples/src/Filtering/ImageGrid/TileImagesSideBySide/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"
int
main(int argc, char * argv[])
{
// Verify arguments
if (argc < 4)
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0] << "input1 input2 output" << std::endl;
return EXIT_FAILURE;
}
// Parse arguments
std::string input1FileName = argv[1];
std::string input2FileName = argv[2];
std::string outputFileName = argv[3];
// Output arguments
std::cout << "input1FileName " << input1FileName << std::endl;
std::cout << "input2FileName " << input2FileName << std::endl;
;
std::cout << "outputFileName " << outputFileName << std::endl;
;
using ImageType = itk::Image<unsigned char, 2>;
// Read images
using ImageReaderType = itk::ImageFileReader<ImageType>;
ImageReaderType::Pointer reader1 = ImageReaderType::New();
reader1->SetFileName(input1FileName);
reader1->Update();
ImageReaderType::Pointer reader2 = ImageReaderType::New();
reader2->SetFileName(input2FileName);
reader2->Update();
// Tile the images side-by-side
TileFilterType::Pointer tileFilter = TileFilterType::New();
layout[0] = 2;
layout[1] = 0;
tileFilter->SetLayout(layout);
tileFilter->SetInput(0, reader1->GetOutput());
tileFilter->SetInput(1, reader2->GetOutput());
// Set the value of output pixels which are created by mismatched size input images.
// If the two images are the same height, this will not be used.
unsigned char fillerValue = 128;
tileFilter->SetDefaultPixelValue(fillerValue);
tileFilter->Update();
// Write the output image
using WriterType = itk::ImageFileWriter<ImageType>;
WriterType::Pointer writer = WriterType::New();
writer->SetInput(tileFilter->GetOutput());
writer->SetFileName(outputFileName);
writer->Update();
return EXIT_SUCCESS;
}
itkImageFileReader.h
itkImage.h
itk::TileImageFilter
Tile multiple input images into a single output image.
Definition: itkTileImageFilter.h:52
itk::ImageFileReader
Data source that reads image data from a single file.
Definition: itkImageFileReader.h:75
itk::ImageFileWriter
Writes image data to a single file.
Definition: itkImageFileWriter.h:87
itk::FixedArray
Simulate a standard C array with copy semantics.
Definition: itkFixedArray.h:52
itkImageFileWriter.h
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:86
itkTileImageFilter.h