DGtal  1.5.beta

Example of 2D images extraction from 3D images and 3D visualisation.

Example of 3D visualisation of 2D slices images of the sample/lobster.vol file.
#include <iostream>
#include <sstream>
#include "DGtal/base/Common.h"
#include "DGtal/helpers/StdDefs.h"
#include "DGtal/images/ImageHelper.h"
#include "DGtal/io/readers/VolReader.h"
#include "DGtal/images/ImageSelector.h"
#include "DGtal/images/ConstImageAdapter.h"
#include "ConfigExamples.h"
#include "DGtal/io/viewers/Viewer3D.h"
#include "DGtal/kernel/BasicPointFunctors.h"
using namespace std;
using namespace DGtal;
int main( int argc, char** argv )
QApplication application(argc,argv);
Viewer3D<> viewer;
typedef ImageSelector < Z3i::Domain, unsigned char>::Type Image3D;
typedef ImageSelector < Z2i::Domain, unsigned char>::Type Image2D;
Image3D::Value, DGtal::functors::Identity > ImageAdapterExtractor;
// Importing a 3D image
std::string filename = examplesPath + "samples/lobster.vol";
Image3D image = VolReader<Image3D>::importVol( filename );
DGtal::Z2i::Domain domain(invFunctor(image.domain().lowerBound()),
trace.beginBlock ( "Example extract2DImagesFrom3D" );
// Extracting 2D slices ... and visualisation on 3DViewer
unsigned int pos=0;
for (unsigned int i=0; i<30; i+=5){
SliceImageAdapter sliceImageZ(image, domain, aSliceFunctor, idV);
viewer << sliceImageZ;
viewer << DGtal::UpdateImagePosition<Z3i::Space, Z3i::KSpace>(pos, Viewer3D<>::zDirection, i*20, i*20, i*20 );
// Visu extraction from points
const int IMAGE_PATCH_WIDTH = 40;
DGtal::Z3i::Point ptCenter(155, 155, 20);
ImageAdapterExtractor extractedImage(image, domainImage2D, embedder, idV);
viewer << extractedImage;
viewer << DGtal::UpdateImage3DEmbedding<Z3i::Space, Z3i::KSpace>(pos,
viewer << DGtal::Viewer3D<>::updateDisplay;
return 0;
// //
Aim: implements a const image adapter with a given domain (i.e. a subdomain) and 2 functors : g for d...
const Point & upperBound() const
void beginBlock(const std::string &keyword="")
Aim: Functor that embeds a 2D point into a 3D space from two axis vectors and an origin point given i...
DGtal is the top-level namespace which contains all DGtal functions and types.
Trace trace
Definition: Common.h:153
Aim: Define a simple default functor that just returns its argument.
Aim: Functor that maps a point P of dimension i to a point Q of dimension j. The member myDims is an ...
void initAddOneDim(const Dimension &newDim)
int main(int argc, char **argv)
MyPointD Point
Definition: testClone2.cpp:383
Domain domain
PointVector< 3, double > RealPoint