DGtal  0.9.3
extract2DSlicesImagesFrom3D.cpp
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1 
40 #include <iostream>
42 #include <sstream>
43 #include "DGtal/kernel/BasicPointFunctors.h"
44 #include "DGtal/base/Common.h"
45 #include "DGtal/helpers/StdDefs.h"
46 #include "DGtal/io/readers/VolReader.h"
47 #include "DGtal/io/writers/PGMWriter.h"
48 #include "DGtal/images/ImageSelector.h"
49 #include "DGtal/images/ConstImageAdapter.h"
50 #include "ConfigExamples.h"
52 
53 using namespace std;
54 using namespace DGtal;
55 
57 
58 int main( )
59 {
63  Image3D::Value, DGtal::functors::Identity > SliceImageAdapter;
64 
65 
67 
68  // Importing a 3D image
69  std::string filename = examplesPath + "samples/lobster.vol";
70  Image3D image = VolReader<Image3D>::importVol( filename );
71  DGtal::Z2i::Domain domain(proj(image.domain().lowerBound()),
72  proj(image.domain().upperBound()));
74 
75  trace.beginBlock ( "Example extract2DImagesFrom3D" );
76 
77  // Extracting 2D slices ... and export them in the pgm format.
78  for (unsigned int i=0; i<30; i+=10){
79  std::stringstream name;
80  name << "lobsterSliceZ_" << i << ".pgm";
81  DGtal::functors::Projector<Z3i::Space> aSliceFunctor(i); aSliceFunctor.initAddOneDim(2);
82  SliceImageAdapter sliceImageZ(image, domain, aSliceFunctor, idV);
83  PGMWriter<SliceImageAdapter>::exportPGM(name.str(), sliceImageZ);
84  }
85 
86  // trace.endBlock();
87  return 0;
88 }
89 // //
void beginBlock(const std::string &keyword="")
const Domain domain(Point(1, 2), Point(6, 5))
Trace trace
Definition: Common.h:137
STL namespace.
Aim: Functor that maps a point P of dimension i to a point Q of dimension j. The member myDims is an ...
Aim: Define a simple default functor that just returns its argument.
Aim: implements methods to read a "Vol" file format.
Definition: VolReader.h:89
DGtal is the top-level namespace which contains all DGtal functions and types.
Aim: Export a 2D and a 3D Image using the Netpbm PGM formats (ASCII mode).
Definition: PGMWriter.h:88
void initAddOneDim(const Dimension &newDim)
Aim: implements a const image adapter with a given domain (i.e. a subdomain) and 2 functors : g for d...