1 /*=========================================================================
4 Module: $RCSfile: TestCopyDicom.cxx,v $
6 Date: $Date: 2005/01/19 08:58:33 $
7 Version: $Revision: 1.31 $
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.
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.
17 =========================================================================*/
18 #include "gdcmHeader.h"
20 #include "gdcmValEntry.h"
21 #include "gdcmBinEntry.h"
24 #include "gdcmDataImages.h"
27 #include <unistd.h> //for access, unlink
29 #include <io.h> //for _access on Win32
32 // return true if the file exists
33 bool FileExists(const char* filename)
36 # define access _access
41 if ( access(filename, R_OK) != 0 )
51 bool RemoveFile(const char* source)
54 #define _unlink unlink
56 return unlink(source) != 0 ? false : true;
59 int CopyDicom(std::string const & filename,
60 std::string const & output )
62 std::cout << " Testing: " << filename << std::endl;
63 if( FileExists( output.c_str() ) )
65 if( !RemoveFile( output.c_str() ) )
67 std::cout << "Ouch, the file exist, but I cannot remove it" << std::endl;
72 //////////////// Step 1:
74 gdcm::Header *originalH = new gdcm::Header( filename );
75 gdcm::Header *copyH = new gdcm::Header( );
77 //First of all copy the header field by field
79 // Warning :Accessor gdcmElementSet::GetEntry() should not exist
80 // It was commented out by Mathieu, that was a *good* idea
82 //////////////// Step 2:
84 gdcm::DocEntry* d=originalH->GetFirstEntry();
87 if ( gdcm::BinEntry* b = dynamic_cast<gdcm::BinEntry*>(d) )
89 copyH->ReplaceOrCreate(
96 else if ( gdcm::ValEntry* v = dynamic_cast<gdcm::ValEntry*>(d) )
98 copyH->ReplaceOrCreate(
106 // We skip pb of SQ recursive exploration
109 d=originalH->GetNextEntry();
112 gdcm::File *original = new gdcm::File( originalH );
113 gdcm::File *copy = new gdcm::File( copyH );
115 size_t dataSize = original->GetImageDataSize();
116 uint8_t* imageData = original->GetImageData();
118 // Useless to set the image datas, because it's already made when
119 // copying the corresponding BinEntry that contains the pixel datas
120 copy->SetImageData(imageData, dataSize);
122 //////////////// Step 3:
124 copy->SetWriteModeToRGB();
125 if( !copy->WriteDcmExplVR(output) )
127 std::cout << " Failed" << std::endl
128 << " " << output << " not written" << std::endl;
141 //////////////// Step 4:
143 copy = new gdcm::File( output );
145 //Is the file written still gdcm parsable ?
146 if ( !copy->GetHeader()->IsReadable() )
148 std::cout << " Failed" << std::endl
149 << " " << output << " not readable" << std::endl;
157 //////////////// Step 5:
159 size_t dataSizeWritten = copy->GetImageDataSize();
160 uint8_t* imageDataWritten = copy->GetImageData();
162 if (dataSize != dataSizeWritten)
164 std::cout << " Failed" << std::endl
165 << " Pixel areas lengths differ: "
166 << dataSize << " # " << dataSizeWritten << std::endl;
175 if (int res = memcmp(imageData, imageDataWritten, dataSize) !=0)
178 std::cout << " Failed" << std::endl
179 << " Pixel differ (as expanded in memory)." << std::endl;
187 std::cout << "OK." << std::endl ;
196 // Here we load a gdcmFile and then try to create from scratch a copy of it,
197 // copying field by field the dicom image
199 int TestCopyDicom(int argc, char* argv[])
203 // The test is specified a specific filename, use it instead of looping
205 const std::string input = argv[1];
206 const std::string reference = argv[2];
207 return CopyDicom( input, reference );
209 else if ( argc > 3 || argc == 2 )
211 std::cout << " Usage: " << argv[0]
212 << " (no arguments needed)." << std::endl;
213 std::cout << "or Usage: " << argv[0]
214 << " filename.dcm reference.dcm" << std::endl;
219 std::cout << " Description (Test::TestCopyDicom): "
221 std::cout << " For all images in gdcmData (and not blacklisted in "
222 "Test/CMakeLists.txt)"
224 std::cout << " apply the following to each filename.xxx: "
226 std::cout << " step 1: parse the image (as gdcmHeader) and call"
227 << " IsReadable(). After that, call GetImageData() and "
228 << "GetImageDataSize() "
230 std::cout << " step 2: create a copy of the readed file and the new"
231 << " pixel datas are set to the copy"
233 std::cout << " step 3: write the copy of the image"
235 std::cout << " step 4: read the copy and call IsReadable()"
237 std::cout << " step 5: compare (in memory with memcmp) that the two "
238 << "images " << std::endl
239 << " match (as expanded by gdcm)." << std::endl;
240 std::cout << std::endl;
243 int retVal = 0; //by default this is an error
244 while( gdcmDataImages[i] != 0 )
246 std::string filename = GDCM_DATA_ROOT;
247 filename += "/"; //doh!
248 filename += gdcmDataImages[i];
250 std::string output = "output.dcm";
252 if( CopyDicom( filename, output ) != 0 )