1 /*=========================================================================
4 Module: $RCSfile: TestCopyDicom.cxx,v $
6 Date: $Date: 2005/01/24 16:44:54 $
7 Version: $Revision: 1.35 $
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 =========================================================================*/
19 #include "gdcmFileHelper.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::File *originalH = new gdcm::File( filename );
75 gdcm::File *copyH = new gdcm::File( );
77 //First of all copy the header field by field
79 //////////////// Step 2:
81 gdcm::DocEntry* d=originalH->GetFirstEntry();
84 if ( gdcm::BinEntry* b = dynamic_cast<gdcm::BinEntry*>(d) )
86 copyH->Insert( b->GetBinArea(),
92 else if ( gdcm::ValEntry* v = dynamic_cast<gdcm::ValEntry*>(d) )
94 copyH->Insert( v->GetValue(),
101 // We skip pb of SQ recursive exploration
104 d=originalH->GetNextEntry();
107 gdcm::FileHelper *original = new gdcm::FileHelper( originalH );
108 gdcm::FileHelper *copy = new gdcm::FileHelper( copyH );
110 size_t dataSize = original->GetImageDataSize();
111 uint8_t* imageData = original->GetImageData();
113 // Useless to set the image datas, because it's already made when
114 // copying the corresponding BinEntry that contains the pixel datas
115 copy->SetImageData(imageData, dataSize);
117 //////////////// Step 3:
119 copy->SetWriteModeToRGB();
120 if( !copy->WriteDcmExplVR(output) )
122 std::cout << " Failed" << std::endl
123 << " " << output << " not written" << std::endl;
136 //////////////// Step 4:
138 copy = new gdcm::FileHelper( output );
140 //Is the file written still gdcm parsable ?
141 if ( !copy->GetFile()->IsReadable() )
143 std::cout << " Failed" << std::endl
144 << " " << output << " not readable" << std::endl;
152 //////////////// Step 5:
154 size_t dataSizeWritten = copy->GetImageDataSize();
155 uint8_t* imageDataWritten = copy->GetImageData();
157 if (dataSize != dataSizeWritten)
159 std::cout << " Failed" << std::endl
160 << " Pixel areas lengths differ: "
161 << dataSize << " # " << dataSizeWritten << std::endl;
170 if (int res = memcmp(imageData, imageDataWritten, dataSize) !=0)
173 std::cout << " Failed" << std::endl
174 << " Pixel differ (as expanded in memory)." << std::endl;
182 std::cout << "OK." << std::endl ;
191 // Here we load a gdcmFile and then try to create from scratch a copy of it,
192 // copying field by field the dicom image
194 int TestCopyDicom(int argc, char* argv[])
198 // The test is specified a specific filename, use it instead of looping
200 const std::string input = argv[1];
201 const std::string reference = argv[2];
202 return CopyDicom( input, reference );
204 else if ( argc > 3 || argc == 2 )
206 std::cout << " Usage: " << argv[0]
207 << " (no arguments needed)." << std::endl;
208 std::cout << "or Usage: " << argv[0]
209 << " filename.dcm reference.dcm" << std::endl;
214 std::cout << " Description (Test::TestCopyDicom): "
216 std::cout << " For all images in gdcmData (and not blacklisted in "
217 "Test/CMakeLists.txt)"
219 std::cout << " apply the following to each filename.xxx: "
221 std::cout << " step 1: parse the image (as gdcmFile) and call"
222 << " IsReadable(). After that, call GetImageData() and "
223 << "GetImageDataSize() "
225 std::cout << " step 2: create a copy of the readed file and the new"
226 << " pixel datas are set to the copy"
228 std::cout << " step 3: write the copy of the image"
230 std::cout << " step 4: read the copy and call IsReadable()"
232 std::cout << " step 5: compare (in memory with memcmp) that the two "
233 << "images " << std::endl
234 << " match (as expanded by gdcm)." << std::endl;
235 std::cout << std::endl;
238 int retVal = 0; //by default this is an error
239 while( gdcmDataImages[i] != 0 )
241 std::string filename = GDCM_DATA_ROOT;
242 filename += "/"; //doh!
243 filename += gdcmDataImages[i];
245 std::string output = "output.dcm";
247 if( CopyDicom( filename, output ) != 0 )