Testing/TestReadWriteJPEGReadCompare.cxx

   1 /*=========================================================================
   2
   3   Program:   gdcm
   4   Module:    $RCSfile: TestReadWriteJPEGReadCompare.cxx,v $
   5   Language:  C++
   6   Date:      $Date: 2007/08/29 15:56:41 $
   7   Version:   $Revision: 1.4 $
   8
   9   Copyright (c) CREATIS (Centre de Recherche et d'Applications en Traitement de
  10   l'Image). All rights reserved. See Doc/License.txt or
  11   http://www.creatis.insa-lyon.fr/Public/Gdcm/License.html for details.
  12
  13      This software is distributed WITHOUT ANY WARRANTY; without even
  14      the implied warranty of MERCHANTABILITY or FITNESS FOR A PARTICULAR
  15      PURPOSE.  See the above copyright notices for more information.
  16
  17 =========================================================================*/
  18 #include "gdcmFile.h"
  19 #include "gdcmFileHelper.h"
  20 #include "gdcmDebug.h"
  21
  22 #include "gdcmGlobal.h"
  23 #include "gdcmTS.h"
  24
  25 //Generated file:
  26 #include "gdcmDataImages.h"
  27
  28
  29 const unsigned int MAX_NUMBER_OF_DIFFERENCE = 10;
  30
  31 int nb_of_success___;
  32 int nb_of_failure___;
  33
  34 static int CompareInternalJPEG(std::string const &filename, std::string const &output)
  35 {
  36    std::cout << "----------------------------------------------------------------------" << std::endl
  37              << "   Testing: " << filename << std::endl;
  38
  39    //////////////// Step 1 (see above description):
  40
  41    GDCM_NAME_SPACE::File *file = GDCM_NAME_SPACE::File::New( );
  42    file->SetFileName( filename );
  43    file->Load ();
  44    if( !file->IsReadable() )
  45    {
  46       std::cout << "Failed" << std::endl
  47                 << "Test::TestReadWriteJPEGReadCompare: Image not gdcm compatible:"
  48                 << filename << std::endl;
  49       file->Delete();
  50       nb_of_failure___++;
  51       return 1;
  52    }
  53    std::cout << "           step 1...";
  54
  55    //////////////// Step 2:
  56    GDCM_NAME_SPACE::FileHelper *filehelper = GDCM_NAME_SPACE::FileHelper::New( file );
  57    int dataSize       = filehelper->GetImageDataRawSize();
  58    uint8_t *imageData = filehelper->GetImageDataRaw(); //EXTREMELY IMPORTANT
  59           // Sure, it is : It's up to the user to decide if he wants to
  60           // GetImageData or if he wants to GetImageDataRaw
  61           // (even if we do it by setting a flag, *he* will have to decide)
  62
  63    //filehelper->SetImageData(imageData, dataSize);
  64
  65    filehelper->SetContentType(GDCM_NAME_SPACE::UNMODIFIED_PIXELS_IMAGE); // lossless compression : pixels reain unimpared
  66    filehelper->SetWriteModeToRaw();
  67    filehelper->SetWriteTypeToJPEG(  );
  68
  69    filehelper->SetUserData(imageData,dataSize); // This one ensures the compression
  70    filehelper->Write( output );
  71
  72    std::cout << "2...";
  73
  74    //////////////// Step 3:
  75    GDCM_NAME_SPACE::File *fileout = GDCM_NAME_SPACE::File::New();
  76    fileout->SetFileName( output );
  77    fileout->Load();
  78
  79    if( !fileout->IsReadable() )
  80    {
  81       std::cout << "Failed" << std::endl
  82                 << "Test::TestReadWriteJPEGReadCompare: Could not parse the newly "
  83                 << "written image:" << filename << std::endl;
  84       file->Delete();
  85       filehelper->Delete();
  86       fileout->Delete();
  87       nb_of_failure___++;
  88       return 1;
  89    }
  90
  91    GDCM_NAME_SPACE::FileHelper *reread = GDCM_NAME_SPACE::FileHelper::New( fileout );
  92
  93    std::cout << "3...";
  94    // For the next step:
  95    int     dataSizeWritten   = reread->GetImageDataRawSize();
  96    uint8_t *imageDataWritten = reread->GetImageDataRaw();
  97
  98    //////////////// Step 4:
  99    // Test the image size
 100    if (file->GetXSize() != reread->GetFile()->GetXSize() ||
 101        file->GetYSize() != reread->GetFile()->GetYSize() ||
 102        file->GetZSize() != reread->GetFile()->GetZSize())
 103    {
 104       std::cout << "Failed" << std::endl
 105          << "        Size differs: "
 106          << "X: " << file->GetXSize() << " # "
 107                   << reread->GetFile()->GetXSize() << " | "
 108          << "Y: " << file->GetYSize() << " # "
 109                   << reread->GetFile()->GetYSize() << " | "
 110          << "Z: " << file->GetZSize() << " # "
 111                   << reread->GetFile()->GetZSize() << std::endl;
 112       file->Delete();
 113       filehelper->Delete();
 114       fileout->Delete();
 115       reread->Delete();
 116       nb_of_failure___++;
 117       return 1;
 118    }
 119
 120    // Test the data size
 121    // beware of odd length Pixel Element!
 122    int dataSizeFixed = dataSize + dataSize%2;
 123    int dataSizeWrittenFixed = dataSizeWritten + dataSizeWritten%2;
 124
 125    if (dataSizeFixed != dataSizeWrittenFixed)
 126    {
 127       std::cout << "Failed" << std::endl
 128          << "        Pixel areas lengths differ: "
 129          << dataSize << " # " << dataSizeWritten << std::endl;
 130       file->Delete();
 131       filehelper->Delete();
 132       fileout->Delete();
 133       reread->Delete();
 134       nb_of_failure___++;
 135       return 1;
 136    }
 137
 138    // Test the data content
 139
 140    if (memcmp(imageData, imageDataWritten, dataSizeFixed) !=0)
 141    {
 142       unsigned int j =0;
 143       for(int i1=0; i1<dataSizeFixed; i1++)
 144       {
 145          if (abs ((int)imageData[i1]-(int)imageDataWritten[i1]) > 2)
 146          {
 147             j=1;
 148             break;
 149          }
 150        }
 151
 152        if (j!=0)
 153        {
 154           std::string PixelType = filehelper->GetFile()->GetPixelType();
 155           std::string ts        = filehelper->GetFile()->GetTransferSyntax();
 156
 157           std::cout << " Failed" << std::endl
 158                     << "        pixel ("
 159                     << PixelType
 160                     << ") differ (as expanded in memory)."
 161                     << std::endl
 162                     << "        compression : "
 163                     << GDCM_NAME_SPACE::Global::GetTS()->GetValue(ts) << std::endl;
 164
 165           std::cout << "        list of the first " << MAX_NUMBER_OF_DIFFERENCE
 166                     << " pixels differing (pos : original - written) :"
 167                     << std::endl;
 168
 169           for(int i=0, j=0;i<dataSizeFixed && j<MAX_NUMBER_OF_DIFFERENCE;i++)
 170           {
 171              if (abs ((int)imageData[i]-(int)imageDataWritten[i]) > 2)
 172              {
 173                 std::cout << std::hex << "(" << i << " : "
 174                          << std::hex << (int)(imageData[i]) << " - "
 175                          << std::hex << (int)(imageDataWritten[i]) << ") "
 176                          << std::dec;
 177                 ++j;
 178               }
 179           }
 180           std::cout << std::endl;
 181
 182           file->Delete();
 183           filehelper->Delete();
 184           fileout->Delete();
 185           reread->Delete();
 186           nb_of_failure___++;
 187           return 1;
 188        }
 189    }
 190    std::cout << "=============== 4...OK." << std::endl ;
 191    nb_of_success___ ++;
 192    //////////////// Clean up:
 193    file->Delete();
 194    filehelper->Delete();
 195    fileout->Delete();
 196    reread->Delete();
 197
 198    return 0;
 199 }
 200
 201 // -------------------------------------------------------------------------------------------
 202
 203 int TestReadWriteJPEGReadCompare(int argc, char *argv[])
 204 {
 205    int result = 0;
 206    nb_of_success___ =0;
 207    nb_of_failure___ =0;
 208
 209    if (argc == 4)
 210       GDCM_NAME_SPACE::Debug::DebugOn();
 211
 212    if (argc >= 3)
 213    {
 214       const std::string input  = argv[1];
 215       const std::string output = argv[2];
 216       result += CompareInternalJPEG(input, output);
 217    }
 218    else if( argc > 4 || argc == 2 )
 219    {
 220       std::cout << "Please read the manual" << std::endl;
 221    }
 222    else
 223    {
 224       std::cout<< "Test::TestReadWriteJPEGReadCompare: description " << std::endl;
 225       std::cout << "   For all images in gdcmData (and not blacklisted in "
 226                    "Test/CMakeLists.txt)" << std::endl;
 227       std::cout << "   apply the following multistep test: " << std::endl;
 228       std::cout << "   step 1: parse the image (as gdcmFile) and call"
 229                 << " IsReadable(). " << std::endl;
 230       std::cout << "   step 2: write the corresponding image in JPEG DICOM V3 "
 231                 << "with explicit Value Representation " << std::endl
 232                 << "            in temporary file "
 233                 << "TestReadWriteJPEGReadCompare.dcm." << std::endl;
 234       std::cout << "   step 3: read the image written on step2 and call "
 235                 << " IsReadable(). " << std::endl;
 236       std::cout << "   step 4: compare (in memory with memcmp) that the two "
 237                 << "images " << std::endl
 238                 << "           match (as expanded by gdcm)." << std::endl;
 239
 240       int i = 0;
 241       while( gdcmDataImages[i] != 0 )
 242       {
 243          std::string filename = GDCM_DATA_ROOT;
 244          filename += "/";
 245          filename += gdcmDataImages[i++];
 246          result += CompareInternalJPEG(filename, "TestReadWriteJPEGReadCompare.dcm");
 247       }
 248    }
 249    std::cout << "==================================" << std::endl;
 250    std::cout << "nb of success " << nb_of_success___ << std::endl;
 251    std::cout << "nb of failure " << nb_of_failure___ << std::endl;
 252
 253    return result;
 254 }