lib/maracasVisuLib/src/interface/wxWindows/widgets/pPlotter/pHistogram.cxx

   1 /*# ---------------------------------------------------------------------
   2 #
   3 # Copyright (c) CREATIS (Centre de Recherche en Acquisition et Traitement de l'Image
   4 #                        pour la Sant�)
   5 # Authors : Eduardo Davila, Frederic Cervenansky, Claire Mouton
   6 # Previous Authors : Laurent Guigues, Jean-Pierre Roux
   7 # CreaTools website : www.creatis.insa-lyon.fr/site/fr/creatools_accueil
   8 #
   9 #  This software is governed by the CeCILL-B license under French law and
  10 #  abiding by the rules of distribution of free software. You can  use,
  11 #  modify and/ or redistribute the software under the terms of the CeCILL-B
  12 #  license as circulated by CEA, CNRS and INRIA at the following URL
  13 #  http://www.cecill.info/licences/Licence_CeCILL-B_V1-en.html
  14 #  or in the file LICENSE.txt.
  15 #
  16 #  As a counterpart to the access to the source code and  rights to copy,
  17 #  modify and redistribute granted by the license, users are provided only
  18 #  with a limited warranty  and the software's author,  the holder of the
  19 #  economic rights,  and the successive licensors  have only  limited
  20 #  liability.
  21 #
  22 #  The fact that you are presently reading this means that you have had
  23 #  knowledge of the CeCILL-B license and that you accept its terms.
  24 # ------------------------------------------------------------------------ */
  25
  26
  27 //----------------------------------------------------------------------------
  28 // Class definition include
  29 //----------------------------------------------------------------------------
  30
  31 #include "pHistogram.h"
  32 //#include "vtkJPEGReader.h"
  33 #include "vtkImageData.h"
  34 #include "vtkImageCast.h"
  35 #include "vtkComputeHistogram2DOutliers.h"
  36 #include "vtkTable.h"
  37
  38
  39 #include <iostream>
  40 #include <fstream>
  41 #include <string>
  42 #include <vector>
  43
  44 // ----------------------------------------------------------------------------
  45 // WX headers inclusion.
  46 // For compilers that support precompilation, includes <wx/wx.h>.
  47 // ----------------------------------------------------------------------------
  48
  49 /*
  50 #ifndef WX_PRECOMP
  51 #include <wx/wx.h>
  52 #endif
  53 */
  54 //----------------------------------------------------------------------------
  55 // Class implementation
  56 //----------------------------------------------------------------------------
  57
  58 //IMPLEMENT_CLASS(pHistogram, wxObject)
  59
  60 //----------------------------------------------------------------------------
  61 // Constructors
  62 //----------------------------------------------------------------------------
  63 pHistogram::pHistogram(std::string filePath)
  64 {
  65         path=filePath;
  66         points= vtkImageData::New();
  67         size=100;
  68         sizeImage=0;
  69         buildHistogram();
  70 }
  71
  72 pHistogram::pHistogram(vtkImageData* imageData)
  73 {
  74         points= vtkImageData::New();
  75         size=100;
  76         sizeImage=0;
  77         //cast
  78         /*
  79         vtkImageCast* cast= vtkImageCast::New();
  80         cast->SetInput(imageData);
  81         cast->SetOutputScalarTypeToInt();
  82         cast->Update();
  83         */
  84         //build the histogram
  85         buildHistogram(imageData);
  86 }
  87
  88 pHistogram::~pHistogram()
  89 {
  90         if(points!=NULL)points->Delete();
  91 }
  92 //----------------------------------------------------------------------------
  93 // Methods
  94 //----------------------------------------------------------------------------
  95
  96 void pHistogram::setImagePath(std::string filePath)
  97 {
  98         path=filePath;
  99 }
 100
 101 void pHistogram::buildHistogram()
 102 {
 103         /*
 104                 reader: is the reader of the image
 105                 histogramVector:Is the image data of the original image
 106                 imageData: vtkImageData of the image that we are reading
 107                 range :it has the (min/max) range of the levels of grey
 108         */
 109         points= vtkImageData::New();
 110         vtkMetaImageReader *reader = vtkMetaImageReader::New();
 111         vtkImageData* imageData=NULL;
 112         double range[2];
 113
 114         //reading
 115         reader->SetFileName(path.c_str());
 116         reader->Update();
 117
 118
 119         // getting the data
 120         imageData=reader->GetOutput();
 121         imageData->GetScalarRange(range);
 122         initializePoints(size);
 123         setPoints(imageData);
 124
 125 }
 126
 127 /*
 128 Calculate the histogram and save it in the attribute points
 129 it is used if the user had given the imageData
 130 Pre: Size had to be setted if the user wants
 131 another value that 100
 132 */
 133 void pHistogram::buildHistogram(vtkImageData* imageData)
 134 {
 135         initializePoints(size);
 136         setPoints(imageData);
 137 }
 138
 139 /*
 140   getting ready the points
 141 */
 142 void pHistogram::initializePoints(int xDimension)
 143 {
 144         //setting image data of the points
 145         points->SetDimensions(xDimension,1,1);
 146 //EED   points->SetScalarTypeToUnsignedShort();
 147         points->SetScalarTypeToShort();
 148         points->AllocateScalars();
 149         points->Update();
 150 }
 151
 152 /*
 153          constructing the histogram
 154 */
 155 void pHistogram::setPoints(vtkImageData* imageData)
 156 {
 157
 158 printf("EED pHistogram::setPoints Test: vtkPComputeHistogram2DOutliers\n");
 159 vtkComputeHistogram2DOutliers *vtkhist = vtkComputeHistogram2DOutliers::New();
 160 vtkhist->SetPreferredNumberOfOutliers(10);
 161 vtkhist->SetInput(imageData);
 162 vtkTable *resulttable = vtkhist->GetOutputTable();
 163
 164 printf("EED pHistogram::setPoints rows:%d\n", (int)(resulttable->GetNumberOfRows()) );
 165 printf("EED pHistogram::setPoints colums:%d\n", (int)(resulttable->GetNumberOfColumns()) );
 166
 167         /*
 168                 Pointers
 169         */
 170         unsigned short* dataImagePointerUS      = NULL;
 171         short* dataImagePointerS                = NULL;
 172         double* dataImagePointerD               = NULL;
 173
 174         short* dataHistogramPointer             = NULL;
 175
 176         dataImagePointerUS      = (unsigned short*)imageData->GetScalarPointer(0,0,0);
 177         dataImagePointerS       = (short*)imageData->GetScalarPointer(0,0,0);
 178         dataImagePointerD       = (double*)imageData->GetScalarPointer(0,0,0);
 179
 180         dataHistogramPointer    = (short*)points->GetScalarPointer(0,0,0);
 181
 182         /*
 183          Range of greys
 184         */
 185         double range[2];
 186         if(imageData==NULL)
 187                 range[1]=1;
 188         else
 189                 imageData->GetScalarRange(range);
 190         /*
 191          Setting the  minimun and maximum levels of grey
 192         */
 193         maxLevelOfGrey=range[1];
 194         minLevelOfGrey=range[0];
 195         //std::cout<<"maxLevelOfGrey "<<maxLevelOfGrey<<" minLevelOfGrey "<<minLevelOfGrey<<std::endl;
 196         /*
 197          Image Size
 198         */
 199         int ext[6];
 200         imageData->GetExtent(ext);
 201         int sx,sy,sz;
 202         sx=ext[1]+1;
 203         sy=ext[3]+1;
 204         sz=ext[5]+1;
 205
 206         sizeImage=sx*sy*sz;
 207
 208         int i;
 209         /*
 210           getting ready the histogram
 211         */
 212         for(i=0;i<size;i++)
 213         {
 214                 dataHistogramPointer[i]=0;
 215         }
 216
 217         /*
 218         Constructing the Histogram
 219         */
 220         //int k=size/(maxLevelOfGrey-minLevelOfGrey);
 221         int j=0;
 222         for(i=0;i<sizeImage;i++)
 223         {
 224                 /*
 225                  hashing the histogram
 226                 */
 227                 //double p=((float)*dataImagePointer-minLevelOfGrey);
 228                 //j=p*k;
 229                 if (imageData->GetScalarType()==VTK_UNSIGNED_SHORT)
 230                 {
 231                         j=getIndex(*dataImagePointerUS);
 232                         dataImagePointerUS++;
 233                 }
 234                 if (imageData->GetScalarType()==VTK_SHORT)
 235                 {
 236                         j=getIndex(*dataImagePointerS);
 237                         dataImagePointerS++;
 238                 }
 239                 if (imageData->GetScalarType()==VTK_DOUBLE)
 240                 {
 241                         j=getIndex(*dataImagePointerD);
 242                         dataImagePointerD++;
 243                 }
 244 //EED           j=getIndex(*dataImagePointer);
 245
 246                 //std::cout<<j<<std::endl;
 247                 dataHistogramPointer[j]++;
 248         }
 249         /*
 250         BORRAME
 251         */
 252         /*
 253         k=0;
 254         for(i=0;i<size;i++)
 255         {
 256                 k=dataHistogramPointer[i];
 257         }
 258         */
 259 }
 260 /*
 261 Returns the poins of the histograms
 262 */
 263 vtkImageData* pHistogram::getHistogram()
 264 {
 265         return points;
 266 }
 267
 268 /*
 269 hash por getting the index for the histogram vector of the original
 270 image
 271 @gValue: Level of grey for which wants the index in the histogrram
 272 */
 273 int pHistogram::getIndex(double gValue)
 274 {
 275
 276         double p=((double)gValue-minLevelOfGrey)/(maxLevelOfGrey-minLevelOfGrey);
 277         double k=p*(size-1);
 278         //std::cout<<"gValue "<<gValue<<" k "<<k<<std::endl;
 279         return (int)k;
 280 }
 281 /*
 282 Setting the size
 283 */
 284 void pHistogram::setSize(int nSize)
 285 {
 286         size=nSize;
 287 }
 288 /*
 289         Get Image Size
 290 */
 291 int pHistogram::getImageSize()
 292 {
 293         return sizeImage;
 294 }
 295 /*
 296         Get Size of the histogram
 297 */
 298 int pHistogram::getSize()
 299 {
 300         return size;
 301 }
 302 /*
 303         Get the maximum value of grey of the histogram
 304 */
 305 int pHistogram::getMaximumLevelOfGrey()
 306 {
 307         return maxLevelOfGrey;
 308 }
 309 /*
 310         Get the minimum value of grey of the histogram
 311 */
 312 int pHistogram::getMinimumLevelOfGrey()
 313 {
 314         return minLevelOfGrey;
 315 }
 316 /*
 317                 get a point of the Histogram
 318                 given the grey value
 319 */
 320 int pHistogram::getHistogramPoint(int gValue)
 321 {
 322         //double p=((float)gValue-minLevelOfGrey)/(maxLevelOfGrey-minLevelOfGrey); // JPRx
 323         //double k=p*size;
 324
 325         unsigned short* dataHistogramPointer=NULL;
 326         dataHistogramPointer=(unsigned short*)points->GetScalarPointer(0,0,0);
 327
 328         return dataHistogramPointer[gValue];
 329 }
 330
 331