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 Trinng new histogram ..\n");
 159 /*
 160 printf("EED pHistogram::setPoints Test: vtkPComputeHistogram2DOutliers\n");
 161 vtkComputeHistogram2DOutliers *vtkhist = vtkComputeHistogram2DOutliers::New();
 162 vtkhist->SetPreferredNumberOfOutliers(10);
 163 vtkhist->SetInput(imageData);
 164 vtkTable *resulttable = vtkhist->GetOutputTable();
 165
 166 printf("EED pHistogram::setPoints rows:%d\n", (int)(resulttable->GetNumberOfRows()) );
 167 printf("EED pHistogram::setPoints colums:%d\n", (int)(resulttable->GetNumberOfColumns()) );
 168 */
 169
 170         /*
 171                 Pointers
 172         */
 173         unsigned short* dataImagePointerUS      = NULL;
 174         short* dataImagePointerS                = NULL;
 175         double* dataImagePointerD               = NULL;
 176
 177         short* dataHistogramPointer             = NULL;
 178
 179         dataImagePointerUS      = (unsigned short*)imageData->GetScalarPointer(0,0,0);
 180         dataImagePointerS       = (short*)imageData->GetScalarPointer(0,0,0);
 181         dataImagePointerD       = (double*)imageData->GetScalarPointer(0,0,0);
 182
 183         dataHistogramPointer    = (short*)points->GetScalarPointer(0,0,0);
 184
 185         /*
 186          Range of greys
 187         */
 188         double range[2];
 189         if(imageData==NULL)
 190                 range[1]=1;
 191         else
 192                 imageData->GetScalarRange(range);
 193         /*
 194          Setting the  minimun and maximum levels of grey
 195         */
 196         maxLevelOfGrey=range[1];
 197         minLevelOfGrey=range[0];
 198         //std::cout<<"maxLevelOfGrey "<<maxLevelOfGrey<<" minLevelOfGrey "<<minLevelOfGrey<<std::endl;
 199         /*
 200          Image Size
 201         */
 202         int ext[6];
 203         imageData->GetExtent(ext);
 204         int sx,sy,sz;
 205         sx=ext[1]+1;
 206         sy=ext[3]+1;
 207         sz=ext[5]+1;
 208
 209         sizeImage=sx*sy*sz;
 210
 211         int i;
 212         /*
 213           getting ready the histogram
 214         */
 215         for(i=0;i<size;i++)
 216         {
 217                 dataHistogramPointer[i]=0;
 218         }
 219
 220         /*
 221         Constructing the Histogram
 222         */
 223         //int k=size/(maxLevelOfGrey-minLevelOfGrey);
 224         int j=0;
 225         for(i=0;i<sizeImage;i++)
 226         {
 227                 /*
 228                  hashing the histogram
 229                 */
 230                 //double p=((float)*dataImagePointer-minLevelOfGrey);
 231                 //j=p*k;
 232                 if (imageData->GetScalarType()==VTK_UNSIGNED_SHORT)
 233                 {
 234                         j=getIndex(*dataImagePointerUS);
 235                         dataImagePointerUS++;
 236                 }
 237                 if (imageData->GetScalarType()==VTK_SHORT)
 238                 {
 239                         j=getIndex(*dataImagePointerS);
 240                         dataImagePointerS++;
 241                 }
 242                 if (imageData->GetScalarType()==VTK_DOUBLE)
 243                 {
 244                         j=getIndex(*dataImagePointerD);
 245                         dataImagePointerD++;
 246                 }
 247 //EED           j=getIndex(*dataImagePointer);
 248
 249                 //std::cout<<j<<std::endl;
 250                 dataHistogramPointer[j]++;
 251         }
 252         /*
 253         BORRAME
 254         */
 255         /*
 256         k=0;
 257         for(i=0;i<size;i++)
 258         {
 259                 k=dataHistogramPointer[i];
 260         }
 261         */
 262 }
 263 /*
 264 Returns the poins of the histograms
 265 */
 266 vtkImageData* pHistogram::getHistogram()
 267 {
 268         return points;
 269 }
 270
 271 /*
 272 hash por getting the index for the histogram vector of the original
 273 image
 274 @gValue: Level of grey for which wants the index in the histogrram
 275 */
 276 int pHistogram::getIndex(double gValue)
 277 {
 278
 279         double p=((double)gValue-minLevelOfGrey)/(maxLevelOfGrey-minLevelOfGrey);
 280         double k=p*(size-1);
 281         //std::cout<<"gValue "<<gValue<<" k "<<k<<std::endl;
 282         return (int)k;
 283 }
 284 /*
 285 Setting the size
 286 */
 287 void pHistogram::setSize(int nSize)
 288 {
 289         size=nSize;
 290 }
 291 /*
 292         Get Image Size
 293 */
 294 int pHistogram::getImageSize()
 295 {
 296         return sizeImage;
 297 }
 298 /*
 299         Get Size of the histogram
 300 */
 301 int pHistogram::getSize()
 302 {
 303         return size;
 304 }
 305 /*
 306         Get the maximum value of grey of the histogram
 307 */
 308 int pHistogram::getMaximumLevelOfGrey()
 309 {
 310         return maxLevelOfGrey;
 311 }
 312 /*
 313         Get the minimum value of grey of the histogram
 314 */
 315 int pHistogram::getMinimumLevelOfGrey()
 316 {
 317         return minLevelOfGrey;
 318 }
 319 /*
 320                 get a point of the Histogram
 321                 given the grey value
 322 */
 323 int pHistogram::getHistogramPoint(int gValue)
 324 {
 325         //double p=((float)gValue-minLevelOfGrey)/(maxLevelOfGrey-minLevelOfGrey); // JPRx
 326         //double k=p*size;
 327
 328         unsigned short* dataHistogramPointer=NULL;
 329         dataHistogramPointer=(unsigned short*)points->GetScalarPointer(0,0,0);
 330
 331         return dataHistogramPointer[gValue];
 332 }
 333
 334