extract2DImagesFrom3D.cpp File Reference

#include <iostream>
#include <sstream>
#include "DGtal/kernel/BasicPointFunctors.h"
#include "DGtal/base/Common.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/io/readers/VolReader.h"
#include "DGtal/io/writers/PGMWriter.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/images/ConstImageAdapter.h"
#include "ConfigExamples.h"

Go to the source code of this file.

Functions
int	main (int, char **)

Variables
const int	IMAGE_PATCH_WIDTH = 70

Detailed Description

This program is free software: you can redistribute it and/or modify it under the terms of the GNU Lesser General Public License as published by the Free Software Foundation, either version 3 of the License, or (at your option) any later version.

This program is distributed in the hope that it will be useful, but WITHOUT ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for more details.

You should have received a copy of the GNU General Public License along with this program. If not, see http://www.gnu.org/licenses/.

Author

Bertrand Kerautret (kerau.nosp@m.tre@.nosp@m.loria.nosp@m..fr ) LORIA (CNRS, UMR 7503), University of Nancy, France

Date

2013/10/15

An example file named extract2DImagesFrom3D.

This file is part of the DGtal library.

Definition in file extract2DImagesFrom3D.cpp.

Function Documentation

main()

int main	(	int	,
		char **
	)

[extract2DImagesFrom3DType]

[extract2DImagesFrom3DType]

[extract2DImagesFrom3DOrigin3D]

[extract2DImagesFrom3DOrigin3D]

[extract2DImagesFrom3DOExtract]

[extract2DImagesFrom3DOExtract]

[extract2DImagesFrom3DOExtract2]

[extract2DImagesFrom3DOExtract2]

Definition at line 61 of file extract2DImagesFrom3D.cpp.

{
   typedef ImageSelector < Z3i::Domain, unsigned char>::Type Image3D;
   typedef DGtal::ConstImageAdapter<Image3D, Z2i::Domain, DGtal::functors::Point2DEmbedderIn3D<DGtal::Z3i::Domain>,
                                    Image3D::Value,  DGtal::functors::Identity >  ImageAdapterExtractor;
 
   DGtal::Z3i::Point origin(150, 150, 10);
   DGtal::Z3i::Point ptUpper1(220, 220, 10);
   DGtal::Z3i::Point ptUpper2(150, 150, 50);
   DGtal::Z2i::Domain domainImage2D (DGtal::Z2i::Point(0,0),
                                     DGtal::Z2i::Point(static_cast<int>((ptUpper1-origin).norm()),
                                                       static_cast<int>((ptUpper2-origin).norm())));
   DGtal::Z3i::Point ptCenter(175, 175, 20);
   DGtal::Z2i::Domain domainImage2D2 (DGtal::Z2i::Point(0,0),
                                      DGtal::Z2i::Point(IMAGE_PATCH_WIDTH, IMAGE_PATCH_WIDTH));
 
 
   // Importing a 3D image
   std::string filename = examplesPath + "samples/lobster.vol";
   Image3D image = VolReader<Image3D>::importVol( filename );
   DGtal::Z3i::Domain domainImage3D = image.domain();
   DGtal::functors::Identity idV;
 
   trace.beginBlock ( "Example extract2DImagesFrom3D" );
 
   // Extracting 2D images ... and export them in the pgm format.
   for (unsigned int i=0; i<30; i+=10){
     std::stringstream name;
     name << "lobsterExtracted_"  << i << ".pgm";
     std::stringstream name2;
     name2 << "lobsterExtracted_"  << i << "V2.pgm";
 
     DGtal::functors::Point2DEmbedderIn3D<DGtal::Z3i::Domain >  embedder(domainImage3D, origin+DGtal::Z3i::Point(i,i,0),
                                                               ptUpper1+DGtal::Z3i::Point(i,i,0),
                                                               ptUpper2+DGtal::Z3i::Point(i,i,0));
 
     ImageAdapterExtractor extractedImage(image, domainImage2D, embedder, idV);
 
     DGtal::functors::Point2DEmbedderIn3D<DGtal::Z3i::Domain >  embedder2(domainImage3D, ptCenter+DGtal::Z3i::Point(i,i,0),
                                                                DGtal::Z3i::RealPoint(1,-1,0),
                                                                IMAGE_PATCH_WIDTH);
     ImageAdapterExtractor extractedImage2(image, domainImage2D2, embedder2, idV);
 
     PGMWriter< ImageAdapterExtractor>::exportPGM(name.str(), extractedImage);
     PGMWriter< ImageAdapterExtractor>::exportPGM(name2.str(), extractedImage2);
   }
 
   // trace.endBlock();
   return 0;
}

References DGtal::Trace::beginBlock(), DGtal::PGMWriter< TImage, TFunctor >::exportPGM(), IMAGE_PATCH_WIDTH, DGtal::VolReader< TImageContainer, TFunctor >::importVol(), and DGtal::trace.

Variable Documentation

IMAGE_PATCH_WIDTH

const int IMAGE_PATCH_WIDTH = 70

Examples

images/extract2DImagesFrom3D.cpp, images/extract2DImagesFrom3DandVisu.cpp, and io/viewers/viewer3D-8bis-2Dimages.cpp.

Definition at line 59 of file extract2DImagesFrom3D.cpp.

Referenced by main().