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         buildHistogram(imageData);
  78 }
  79
  80 //----------------------------------------------------------------------------
  81 pHistogram::~pHistogram()
  82 {
  83         if(points!=NULL)points->Delete();
  84 }
  85
  86 //----------------------------------------------------------------------------
  87 void pHistogram::setImagePath(std::string filePath)
  88 {
  89         path=filePath;
  90 }
  91
  92 //----------------------------------------------------------------------------
  93 void pHistogram::buildHistogram()
  94 {
  95         /*
  96                 reader: is the reader of the image
  97                 histogramVector:Is the image data of the original image
  98                 imageData: vtkImageData of the image that we are reading
  99                 range :it has the (min/max) range of the levels of grey
 100         */
 101         points= vtkImageData::New();
 102         vtkMetaImageReader *reader = vtkMetaImageReader::New();
 103         vtkImageData* imageData=NULL;
 104         double range[2];
 105
 106         //reading
 107         reader->SetFileName(path.c_str());
 108         reader->Update();
 109
 110
 111         // getting the data
 112         imageData=reader->GetOutput();
 113         imageData->GetScalarRange(range);
 114         initializePoints(size);
 115         setPoints(imageData);
 116 }
 117
 118 /*
 119 Calculate the histogram and save it in the attribute points
 120 it is used if the user had given the imageData
 121 Pre: Size had to be setted if the user wants
 122 another value that 100
 123 */
 124 void pHistogram::buildHistogram(vtkImageData* imageData)
 125 {
 126         initializePoints(size);
 127         setPoints(imageData);
 128 }
 129
 130 /*
 131   getting ready the points
 132 */
 133 void pHistogram::initializePoints(int xDimension)
 134 {
 135         //setting image data of the points
 136         points->SetDimensions(xDimension,1,1);
 137 //EED   points->SetScalarTypeToUnsignedShort();
 138         points->SetScalarTypeToDouble();
 139         points->AllocateScalars();
 140         points->Update();
 141 }
 142
 143 /*
 144          constructing the histogram
 145 */
 146 void pHistogram::setPoints(vtkImageData* imageData)
 147 {
 148
 149 printf("EED pHistogram::setPoints Trinng new histogram ..\n");
 150 /*
 151 printf("EED pHistogram::setPoints Test: vtkPComputeHistogram2DOutliers\n");
 152 vtkComputeHistogram2DOutliers *vtkhist = vtkComputeHistogram2DOutliers::New();
 153 vtkhist->SetPreferredNumberOfOutliers(10);
 154 vtkhist->SetInput(imageData);
 155 vtkTable *resulttable = vtkhist->GetOutputTable();
 156
 157 printf("EED pHistogram::setPoints rows:%d\n", (int)(resulttable->GetNumberOfRows()) );
 158 printf("EED pHistogram::setPoints colums:%d\n", (int)(resulttable->GetNumberOfColumns()) );
 159 */
 160
 161         /*
 162                 Pointers
 163         */
 164
 165         char*                           dataImagePointerC               = (char*)imageData->GetScalarPointer(0,0,0);
 166         unsigned char*  dataImagePointerUC      = (unsigned char*)imageData->GetScalarPointer(0,0,0);
 167         short*                          dataImagePointerS               = (short*)imageData->GetScalarPointer(0,0,0);
 168         unsigned short*         dataImagePointerUS      = (unsigned short*)imageData->GetScalarPointer(0,0,0);
 169         float*                          dataImagePointerF               = (float*)imageData->GetScalarPointer(0,0,0);
 170         double*                                 dataImagePointerD               = (double*)imageData->GetScalarPointer(0,0,0);
 171         double*                                 dataHistogramPointer    = (double*)points->GetScalarPointer(0,0,0);
 172
 173         /*
 174          Range of greys
 175         */
 176         double range[2];
 177         if(imageData==NULL)
 178         {
 179                 range[1] = 1;
 180         } else {
 181                 imageData->GetScalarRange(range);
 182         } // imageData
 183
 184         /*
 185          Setting the  minimun and maximum levels of grey
 186         */
 187         maxLevelOfGrey = range[1];
 188         minLevelOfGrey = range[0];
 189         //std::cout<<"maxLevelOfGrey "<<maxLevelOfGrey<<" minLevelOfGrey "<<minLevelOfGrey<<std::endl;
 190         /*
 191          Image Size
 192         */
 193         int ext[6];
 194         imageData->GetExtent(ext);
 195         int sx,sy,sz;
 196         sx = ext[1]-ext[0]+1;
 197         sy = ext[3]-ext[2]+1;
 198         sz = ext[5]-ext[4]+1;
 199
 200         sizeImage=sx*sy*sz;
 201
 202         int i;
 203         /*
 204           getting ready the histogram
 205         */
 206         for(i=0;i<size;i++)
 207         {
 208                 dataHistogramPointer[i]=0;
 209         }
 210
 211         long int j=0;
 212
 213
 214         if (imageData->GetScalarType()==VTK_CHAR)
 215         {
 216                 for(i=0;i<sizeImage;i++)
 217                 {
 218                         j=getIndex(*dataImagePointerC);
 219                         dataImagePointerC++;
 220                         dataHistogramPointer[j]++;
 221                 }  // for i
 222         } //  CHAR
 223
 224         if (imageData->GetScalarType()==VTK_UNSIGNED_CHAR)
 225         {
 226                 for(i=0;i<sizeImage;i++)
 227                 {
 228                         j=getIndex(*dataImagePointerUC);
 229                         dataImagePointerUC++;
 230                         dataHistogramPointer[j]++;
 231                 }  // for i
 232         } // UNSIGNED CHAR
 233
 234
 235         if (imageData->GetScalarType()==VTK_SHORT)
 236         {
 237                 for(i=0;i<sizeImage;i++)
 238                 {
 239                         j=getIndex(*dataImagePointerS);
 240                         dataImagePointerS++;
 241                         dataHistogramPointer[j]++;
 242                 }  // for i
 243         } // SHORT
 244
 245         if (imageData->GetScalarType()==VTK_UNSIGNED_SHORT)
 246         {
 247                 for(i=0;i<sizeImage;i++)
 248                 {
 249                         j=getIndex(*dataImagePointerUS);
 250                         dataImagePointerUS++;
 251                         dataHistogramPointer[j]++;
 252                 }  // for i
 253         } // UNSIGNED SHORT
 254
 255
 256         if (imageData->GetScalarType()==VTK_FLOAT)
 257         {
 258                 for(i=0;i<sizeImage;i++)
 259                 {
 260                         j=getIndex(*dataImagePointerF);
 261                         dataImagePointerF++;
 262                         dataHistogramPointer[j]++;
 263                 }  // for i
 264         } // FLOAT
 265
 266
 267         if (imageData->GetScalarType()==VTK_DOUBLE)
 268         {
 269                 for(i=0;i<sizeImage;i++)
 270                 {
 271                         j=getIndex(*dataImagePointerD);
 272                         dataImagePointerD++;
 273                         dataHistogramPointer[j]++;
 274                 }  // for i
 275         } // DOUBLE
 276
 277 }
 278
 279
 280 /*
 281 Returns the poins of the histograms
 282 */
 283 vtkImageData* pHistogram::getHistogram()
 284 {
 285         return points;
 286 }
 287
 288 /*
 289 hash por getting the index for the histogram vector of the original
 290 image
 291 @gValue: Level of grey for which wants the index in the histogrram
 292 */
 293 int pHistogram::getIndex(double gValue)
 294 {
 295         double p;
 296         double diff=maxLevelOfGrey-minLevelOfGrey;
 297         if (diff!=0)
 298         {
 299                 p=((double)gValue-minLevelOfGrey)/(maxLevelOfGrey-minLevelOfGrey);
 300         } else {
 301                 p=0;
 302         }
 303         double k=p*(size-1);
 304         //std::cout<<"gValue "<<gValue<<" k "<<k<<std::endl;
 305         return (int)k;
 306 }
 307 /*
 308 Setting the size
 309 */
 310 void pHistogram::setSize(int nSize)
 311 {
 312         size=nSize;
 313 }
 314 /*
 315         Get Image Size
 316 */
 317 int pHistogram::getImageSize()
 318 {
 319         return sizeImage;
 320 }
 321 /*
 322         Get Size of the histogram
 323 */
 324 int pHistogram::getSize()
 325 {
 326         return size;
 327 }
 328 /*
 329         Get the maximum value of grey of the histogram
 330 */
 331 int pHistogram::getMaximumLevelOfGrey()
 332 {
 333         return maxLevelOfGrey;
 334 }
 335 /*
 336         Get the minimum value of grey of the histogram
 337 */
 338 int pHistogram::getMinimumLevelOfGrey()
 339 {
 340         return minLevelOfGrey;
 341 }
 342 /*
 343                 get a point of the Histogram
 344                 given the grey value
 345 */
 346 int pHistogram::getHistogramPoint(int gValue)
 347 {
 348         //double p=((float)gValue-minLevelOfGrey)/(maxLevelOfGrey-minLevelOfGrey); // JPRx
 349         //double k=p*size;
 350
 351         double* dataHistogramPointer = dataHistogramPointer=(double*)points->GetScalarPointer(0,0,0);
 352         return dataHistogramPointer[gValue];
 353 }
 354
 355