imgAddNoise.cpp

 
#include <DGtal/base/Common.h>
#include "DGtal/io/readers/GenericReader.h"
#include "DGtal/io/writers/GenericWriter.h"
#include "DGtal/images/ImageContainerBySTLVector.h"
#include "DGtal/images/ImageSelector.h"
#include <DGtal/geometry/volumes/KanungoNoise.h>
#include <DGtal/images/IntervalForegroundPredicate.h>
 
#include "CLI11.hpp"
 
#include <vector>
#include <string>
#include <climits>
 
 
 
using namespace DGtal;
 
 
void missingParam ( std::string param )
{
  trace.error() <<" Parameter: "<<param<<" is required..";
  trace.info() <<std::endl;
  exit ( 1 );
}
 
typedef ImageSelector < Z2i::Domain, unsigned char>::Type MyImage;
 
 
int main( int argc, char** argv )
{
// parse command line using CLI ----------------------------------------------
  CLI::App app;
  std::string inputFileName;
  std::string outputFileName {"result.png"};
  double noise {0.5};
 
  app.description("Add Kanungo noise to a binary object with 0 values as background points and values >0 for the foreground ones.\n Example: \n imgAddNoise ${DGtal}/examples/samples/klokan.pgm noise.pgm ");
  app.add_option("-i,--input,1", inputFileName, "input image file name (any 2D image format accepted by DGtal::GenericReader)." )
    ->required()
    ->check(CLI::ExistingFile);
  app.add_option("-o,--output,2", outputFileName, "output image file name (any 2D image format accepted by DGtal::GenericWriter)", true);
  app.add_option("-n,--noise", noise, "Kanungo noise level in ]0,1[ (default 0.5)", true);
 
  app.get_formatter()->column_width(40);
  CLI11_PARSE(app, argc, argv);
  // END parse command line using CLI ----------------------------------------------
 
    
  typedef functors::IntervalForegroundPredicate<MyImage> Binarizer;
  MyImage image = GenericReader<MyImage>::import( inputFileName );
  trace.info() <<"Input image: "<< image<<std::endl;
  Binarizer predicate(image, 0,255);
  
  KanungoNoise<Binarizer, Z2i::Domain> kanungo(predicate, image.domain(), noise);
  
  MyImage result(image.domain());
  for(Z2i::Domain::ConstIterator it = image.domain().begin(), itend = image.domain().end(); it!= itend; ++it)
  {
    if (kanungo(*it))
      result.setValue(*it, 255);
    else
      result  .setValue(*it, 0);
  }
 
  result >> outputFileName;
  
  return EXIT_SUCCESS;
}