DGtal  0.9.4beta
distancetransform3D.cpp
1 
39 #include <iostream>
41 
42 #include "DGtal/base/Common.h"
43 #include "DGtal/kernel/SpaceND.h"
44 #include "DGtal/kernel/domains/HyperRectDomain.h"
45 #include "DGtal/images/ImageSelector.h"
46 #include "DGtal/io/readers/VolReader.h"
47 
48 #include "DGtal/io/Color.h"
49 #include "DGtal/io/colormaps/GradientColorMap.h"
50 #include "DGtal/io/DrawWithDisplay3DModifier.h"
51 #include "DGtal/io/viewers/Viewer3D.h"
52 
53 #include "DGtal/kernel/SpaceND.h"
54 #include "DGtal/kernel/domains/HyperRectDomain.h"
55 #include "DGtal/images/ImageSelector.h"
56 
57 #include "DGtal/geometry/volumes/distance/DistanceTransformation.h"
58 #include "DGtal/images/SimpleThresholdForegroundPredicate.h"
59 #include "DGtal/helpers/StdDefs.h"
60 
61 #include "ConfigExamples.h"
62 
63 #include "DGtal/helpers/StdDefs.h"
64 
66 
67 using namespace std;
68 using namespace DGtal;
69 
71 
72 
80 template<typename Image>
81 void randomSeeds(Image &image, const unsigned int nb, const int value)
82 {
83  typename Image::Point p, low = image.domain().lowerBound();
84  typename Image::Vector ext;
85  srand ( time(NULL) );
86 
87  ext = image.extent();
88 
89  for (unsigned int k = 0 ; k < nb; k++)
90  {
91  for (unsigned int dim = 0; dim < Image::dimension; dim++)
92  p[dim] = rand() % (ext[dim]) + low[dim];
93 
94  image.setValue(p, value);
95  }
96 }
97 
98 using namespace DGtal;
99 
100 int main( int argc, char** argv )
101 {
102 
103  std::string inputFilename = examplesPath + "samples/Al.100.vol";
104 
105  //------------
106  QApplication application(argc,argv);
107  Viewer3D<> viewer;
108  viewer.setWindowTitle("simpleViewer");
109  viewer.show();
110 
111 
112 
113  //Default image selector = STLVector
115  Image image = VolReader<Image>::importVol( inputFilename );
116  Z3i::Domain domain = image.domain();
117 
118 
119  Image imageSeeds ( domain);
120  for ( Image::Iterator it = imageSeeds.begin(), itend = imageSeeds.end();it != itend; ++it)
121  (*it)=1;
122  Z3i::Point p0(10,10,10);
123  //imageSeeds.setValue(p0, 0 );
124  randomSeeds(imageSeeds, 70, 0);
125 
126 
127  //Distance transformation computation
129  Predicate aPredicate(imageSeeds,0);
130 
132  DTL2 dtL2(&domain, &aPredicate, &Z3i::l2Metric);
133 
134  unsigned int min = 0;
135  unsigned int max = 0;
136  for(DTL2::ConstRange::ConstIterator it = dtL2.constRange().begin(),
137  itend=dtL2.constRange().end();
138  it!=itend;
139  ++it)
140  {
141  if( (*it) < min )
142  min=(*it);
143  if( (*it) > max )
144  max=(*it);
145  }
146 
147 
148  GradientColorMap<long> gradient( 0,30);
149  gradient.addColor(Color::Red);
150  gradient.addColor(Color::Yellow);
151  gradient.addColor(Color::Green);
152  gradient.addColor(Color::Cyan);
153  gradient.addColor(Color::Blue);
154  gradient.addColor(Color::Magenta);
155  gradient.addColor(Color::Red);
156 
157 
158  viewer << SetMode3D( (*(domain.begin())).className(), "Paving" );
159 
160  for(Z3i::Domain::ConstIterator it = domain.begin(), itend=domain.end();
161  it!=itend;
162  ++it){
163 
164  double valDist= dtL2( (*it) );
165  Color c= gradient(valDist);
166 
167  if(dtL2(*it)<=30 && image(*it)>0){
168  viewer << CustomColors3D(Color((float)(c.red()),
169  (float)(c.green()),
170  (float)(c.blue(),205)),
171  Color((float)(c.red()),
172  (float)(c.green()),
173  (float)(c.blue()),205));
174  viewer << *it ;
175  }
176  }
177  viewer<< Viewer3D<>::updateDisplay;
178 
179  return application.exec();
180 }
181 // //
183 
Aim: This class template may be used to (linearly) convert scalar values in a given range into a colo...
const ConstIterator & begin() const
Aim: Implementation of the linear in time distance transformation for separable metrics.
Aim: implements association bewteen points lying in a digital domain and values.
Definition: Image.h:69
const ConstIterator & end() const
STL namespace.
void setValue(const Point &aPoint, const Value &aValue)
Definition: Image.h:247
Aim: Define a simple Foreground predicate thresholding image values given a single thresold...
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.
Structure representing an RGB triple with alpha component.
Definition: Color.h:66
void green(const unsigned char aGreenValue)
const Domain & domain() const
Definition: Image.h:192
virtual void show()
Overload QWidget method in order to add a call to updateList() method (to ensure that the lists are w...
void red(const unsigned char aRedValue)
Modifier class in a Display3D stream. Useful to choose your own mode for a given class. Realizes the concept CDrawableWithDisplay3D.
void blue(const unsigned char aBlueValue)