ITK  4.13.0
Insight Segmentation and Registration Toolkit
SphinxExamples/src/Filtering/ImageFeature/DetectEdgesWithCannyFilter/Code.cxx
/*=========================================================================
*
* 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 "itkImage.h"
int main( int argc, char* argv[] )
{
if( argc != 6 )
{
std::cerr << "Usage: "<< std::endl;
std::cerr << argv[0];
std::cerr << "<InputImage> <OutputImage> ";
std::cerr << "<Variance> <LowerThreshold> <UpperThreshold>";
std::cerr << std::endl;
return EXIT_FAILURE;
}
const unsigned int Dimension = 2;
typedef float InputPixelType;
typedef unsigned char OutputPixelType;
const char * inputImage = argv[1];
const char * outputImage = argv[2];
const InputPixelType variance = atof( argv[3] );
const InputPixelType lowerThreshold = atof( argv[4] );
const InputPixelType upperThreshold = atof( argv[5] );
typedef itk::Image<InputPixelType, Dimension> InputImageType;
typedef itk::Image<OutputPixelType, Dimension> OutputImageType;
ReaderType::Pointer reader = ReaderType::New();
reader->SetFileName( inputImage );
FilterType;
FilterType::Pointer filter = FilterType::New();
filter->SetInput( reader->GetOutput() );
filter->SetVariance( variance );
filter->SetLowerThreshold( lowerThreshold );
filter->SetUpperThreshold( upperThreshold );
RescaleType::Pointer rescaler = RescaleType::New();
rescaler->SetInput( filter->GetOutput() );
rescaler->SetOutputMinimum( 0 );
rescaler->SetOutputMaximum( 255 );
WriterType::Pointer writer = WriterType::New();
writer->SetFileName( outputImage );
writer->SetInput( rescaler->GetOutput() );
try
{
writer->Update();
}
{
std::cerr << "Error: " << e << std::endl;
return EXIT_FAILURE;
}
return EXIT_SUCCESS;
}