testPNMReader.cpp

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#include <iostream>
#include "DGtal/base/Common.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/io/boards/Board2D.h"
#include "DGtal/io/readers/PPMReader.h"
#include "DGtal/io/readers/PGMReader.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/images/imagesSetsUtils/SetFromImage.h"
#include "ConfigTest.h"
 
 
using namespace std;
using namespace DGtal;
 
// Functions for testing class PNMReader.
 
bool testPNMReader()
{
  trace.beginBlock ( "Testing pgm reader ..." );
  std::string filename = testPath + "samples/circleR10.pgm";
 
  trace.info() << "Loading filename: "<< filename<<std::endl;
 
  typedef ImageSelector < Z2i::Domain, unsigned int>::Type Image;
  Image image = PGMReader<Image>::importPGM( filename ); 
  
  Z2i::DigitalSet set2d (image.domain());
  SetFromImage<Z2i::DigitalSet>::append<Image>(set2d, image, 0, 255);
   
  Board2D board;
  board << image.domain() << set2d; // display domain and set
  
  board.saveEPS( "testPNMReaderPGM.eps");
  trace.endBlock();
 
  trace.beginBlock ( "Testing ppm reader ..." );
  std::string filenamePPM = testPath + "samples/color64.ppm";
 
  trace.info() << "Loading filename: "<< filenamePPM <<std::endl;
 
  typedef ImageSelector < Z2i::Domain, unsigned int>::Type Image;
  Image imagePPM = PPMReader<Image>::importPPM( filenamePPM ); 
  
  Z2i::DigitalSet set2dPPM (imagePPM.domain());
  SetFromImage<Z2i::DigitalSet>::append<Image>(set2dPPM, imagePPM, 0, 0xFFFFFEu);
   
  Board2D boardPPM;
  boardPPM << imagePPM.domain() << set2dPPM; // display domain and set
  
  boardPPM.saveEPS( "testPNMReaderPPM.eps");
  trace.endBlock();  
 
  return true;
}
bool testPNM3DReader()
{
  trace.beginBlock ( "Testing pgm3D reader ..." );
  std::string filename = testPath + "samples/simple.pgm3d";
 
  trace.info() << "Loading filename: "<< filename<<std::endl;
 
  typedef ImageSelector < Z3i::Domain, unsigned int>::Type Image;
  Image image = PGMReader<Image>::importPGM3D( filename ); 
  
  trace.info() << "Image 3D = "<<image<<std::endl;
  
  trace.endBlock();
  return true;
}
 
bool testPNM3DASCIIReader()
{
    trace.beginBlock ( "Testing P2 pgm3D reader ..." );
    std::string filename = testPath + "samples/ascii_ball.pgm3d";
 
    trace.info() << "Loading filename: "<< filename<<std::endl;
 
    typedef ImageSelector < Z3i::Domain, unsigned int>::Type Image;
    Image image = PGMReader<Image>::importPGM3D( filename );
 
    trace.info() << "Image 3D = "<<image<<std::endl;
 
    trace.endBlock();
    return true;
}
 
// Standard services - public :
 
int main( int argc, char** argv )
{
  trace.beginBlock ( "Testing class PNMReader" );
  trace.info() << "Args:";
  for ( int i = 0; i < argc; ++i )
    trace.info() << " " << argv[ i ];
  trace.info() << endl;
 
  bool res = testPNMReader() && testPNM3DReader() && testPNM3DASCIIReader(); // && ... other tests
  trace.emphase() << ( res ? "Passed." : "Error." ) << endl;
  trace.endBlock();
  return res ? 0 : 1;
}
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