ITK  5.3.0
Insight Toolkit
SphinxExamples/src/Core/Common/ReRunPipelineWithChangingLargestPossibleRegion/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.
*
*=========================================================================*/
int
main(int argc, char * argv[])
{
if (argc != 4)
{
std::cerr << "Usage: " << std::endl;
std::cerr << argv[0];
std::cerr << " <seriesFormat> <startIndex> <endIndex>";
std::cerr << std::endl;
return EXIT_FAILURE;
}
const char * seriesFormat = argv[1];
unsigned int startIndex = std::stoi(argv[2]);
unsigned int endIndex = std::stoi(argv[3]);
constexpr unsigned int Dimension = 3;
using PixelType = unsigned char;
using NameGeneratorType = itk::NumericSeriesFileNames;
NameGeneratorType::Pointer nameGenerator = NameGeneratorType::New();
nameGenerator->SetSeriesFormat(seriesFormat);
nameGenerator->SetStartIndex(startIndex);
nameGenerator->SetEndIndex(endIndex);
std::vector<std::string> fileNames = nameGenerator->GetFileNames();
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileNames(fileNames);
try
{
reader->Update();
ImageType::ConstPointer output = reader->GetOutput();
const ImageType::RegionType largestRegion = output->GetLargestPossibleRegion();
std::cout << "Initial LargestPossibleRegion: ";
std::cout << largestRegion << std::endl;
;
}
catch (itk::ExceptionObject & error)
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
fileNames.pop_back();
try
{
std::cout << "\nTrying to call Update() "
<< "after shrinking the LargestPossibleRegion...\n"
<< std::endl;
reader->SetFileNames(fileNames);
reader->Update();
}
catch (itk::ExceptionObject & error)
{
// Print out the error that occurs
std::cout << "Error: " << error << std::endl;
}
try
{
std::cout << "Trying to call UpdateLargestPossibleRegion() "
<< "after shrinking the LargestPossibleRegion...\n"
<< std::endl;
reader->SetFileNames(fileNames);
reader->UpdateLargestPossibleRegion();
ImageType::ConstPointer output = reader->GetOutput();
const ImageType::RegionType largestRegion = output->GetLargestPossibleRegion();
std::cout << "Shrunk LargestPossibleRegion: ";
std::cout << largestRegion << std::endl;
;
}
catch (itk::ExceptionObject & error)
{
std::cerr << "Error: " << error << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}
itk::ImageSeriesReader
Data source that reads image data from a series of disk files.
Definition: itkImageSeriesReader.h:45
itkImageSeriesReader.h
itkNumericSeriesFileNames.h
itk::GTest::TypedefsAndConstructors::Dimension2::RegionType
ImageBaseType::RegionType RegionType
Definition: itkGTestTypedefsAndConstructors.h:54
itk::NumericSeriesFileNames
Generate an ordered sequence of filenames.
Definition: itkNumericSeriesFileNames.h:54
itk::Image
Templated n-dimensional image class.
Definition: itkImage.h:88
itk::GTest::TypedefsAndConstructors::Dimension2::Dimension
constexpr unsigned int Dimension
Definition: itkGTestTypedefsAndConstructors.h:44