1 /*=========================================================================
4 Module: $RCSfile: TestCopyDicom.cxx,v $
6 Date: $Date: 2004/11/25 08:14:58 $
7 Version: $Revision: 1.21 $
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 "gdcmDocument.h"
21 #include "gdcmValEntry.h"
22 #include "gdcmBinEntry.h"
25 #include "gdcmDataImages.h"
28 #include <unistd.h> //for access, unlink
30 #include <io.h> //for _access on Win32
33 // return true if the file exists
34 bool FileExists(const char* filename)
37 # define access _access
42 if ( access(filename, R_OK) != 0 )
52 bool RemoveFile(const char* source)
55 #define _unlink unlink
57 return unlink(source) != 0 ? false : true;
60 int CopyDicom(std::string const & filename,
61 std::string const & output )
63 std::cout << " Testing: " << filename << std::endl;
64 if( FileExists( output.c_str() ) )
66 // std::cerr << "Don't try to cheat, I am removing the file anyway" << std::endl;
67 if( !RemoveFile( output.c_str() ) )
69 std::cout << "Ouch, the file exist, but I cannot remove it" << std::endl;
74 //////////////// Step 1:
76 gdcm::File *original = new gdcm::File( filename );
77 gdcm::File *copy = new gdcm::File( output );
79 size_t dataSize = original->GetImageDataSizeRaw();
80 uint8_t* imageData = original->GetImageDataRaw();
81 (void)dataSize; // To use the variable and not have warnings at compil.
82 (void)imageData; // To use the variable and not have warnings at compil.
84 //First of all copy the header field by field
86 // Warning :Accessor gdcmElementSet::GetEntry() should not exist
87 // It was commented out by Mathieu, that was a *good* idea
88 // (the user does NOT have to know the way we implemented the Header !)
89 // Waiting for a 'clean' solution, I keep the method ...JPRx
92 //////////////// Step 2:
94 original->GetHeader()->Initialize();
95 gdcm::DocEntry* d=original->GetHeader()->GetNextEntry();
99 if ( gdcm::BinEntry* b = dynamic_cast<gdcm::BinEntry*>(d) )
101 copy->GetHeader()->ReplaceOrCreateByNumber(
108 else if ( gdcm::ValEntry* v = dynamic_cast<gdcm::ValEntry*>(d) )
110 copy->GetHeader()->ReplaceOrCreateByNumber(
118 // We skip pb of SQ recursive exploration
119 //std::cout << "Skipped Sequence "
120 // << "------------- " << d->GetVR() << " "<< std::hex
121 // << d->GetGroup() << " " << d->GetElement()
125 d=original->GetHeader()->GetNextEntry();
129 // Useless to set the image datas, because it's already made when
130 // copying the corresponding BinEntry that contains the pixel datas
131 copy->SetImageData(imageData, dataSize);
132 // copy->GetImageData();
133 // original->GetHeader()->SetImageDataSize(dataSize);
135 //////////////// Step 3:
137 copy->WriteDcmExplVR( output );
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 << "=> " << output << " Failed" << std::endl;
153 //////////////// Step 5:
155 size_t dataSizeWritten = copy->GetImageDataSizeRaw();
156 uint8_t* imageDataWritten = copy->GetImageDataRaw();
158 if (dataSize != dataSizeWritten)
160 std::cout << " Failed" << std::endl
161 << " Pixel areas lengths differ: "
162 << 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;
181 std::cout << "OK." << std::endl ;
189 // Here we load a gdcmFile and then try to create from scratch a copy of it,
190 // copying field by field the dicom image
192 int TestCopyDicom(int argc, char* argv[])
196 // The test is specified a specific filename, use it instead of looping
198 const std::string input = argv[1];
199 const std::string reference = argv[2];
200 return CopyDicom( input, reference );
202 else if ( argc > 3 || argc == 2 )
204 std::cout << " Usage: " << argv[0]
205 << " (no arguments needed)." << std::endl;
206 std::cout << "or Usage: " << argv[0]
207 << " filename.dcm reference.dcm" << std::endl;
212 std::cout << " Description (Test::TestCopyDicom): "
214 std::cout << " For all images in gdcmData (and not blacklisted in "
215 "Test/CMakeLists.txt)"
217 std::cout << " apply the following to each filename.xxx: "
219 std::cout << " step 1: parse the image (as gdcmHeader) and call"
220 << " IsReadable(). After that, call GetImageData() and "
221 << "GetImageDataSize() "
223 std::cout << " step 2: create a copy of the readed file and the new"
224 << " pixel datas are set to the copy"
226 std::cout << " step 3: write the copy of the image"
228 std::cout << " step 4: read the copy and call IsReadable()"
230 std::cout << " step 5: compare (in memory with memcmp) that the two "
231 << "images " << std::endl
232 << " match (as expanded by gdcm)." << std::endl;
233 std::cout << std::endl;
236 int retVal = 0; //by default this is an error
237 while( gdcmDataImages[i] != 0 )
239 std::string filename = GDCM_DATA_ROOT;
240 filename += "/"; //doh!
241 filename += gdcmDataImages[i];
243 // std::string output = "../Testing/Temporary/output.dcm";
244 std::string output = "output.dcm";
246 if( CopyDicom( filename, output ) != 0 )