1 /*=========================================================================
4 Module: $RCSfile: TestCopyDicom.cxx,v $
6 Date: $Date: 2005/02/03 10:00:06 $
7 Version: $Revision: 1.39 $
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 file, field by field
79 //////////////// Step 2:
81 gdcm::DocEntry *d=originalH->GetFirstEntry();
84 if ( gdcm::BinEntry *b = dynamic_cast<gdcm::BinEntry*>(d) )
86 copyH->InsertBinEntry( b->GetBinArea(),b->GetLength(),
87 b->GetGroup(),b->GetElement(),
90 else if ( gdcm::ValEntry *v = dynamic_cast<gdcm::ValEntry*>(d) )
92 copyH->InsertValEntry( v->GetValue(),
93 v->GetGroup(),v->GetElement(),
98 // We skip pb of SQ recursive exploration
101 d=originalH->GetNextEntry();
104 gdcm::FileHelper *original = new gdcm::FileHelper( originalH );
105 gdcm::FileHelper *copy = new gdcm::FileHelper( copyH );
107 size_t dataSize = original->GetImageDataSize();
108 uint8_t *imageData = original->GetImageData();
110 // Useless to set the image data, because it's already made when
111 // copying the corresponding BinEntry that contains the pixel data
112 copy->SetImageData(imageData, dataSize);
114 //////////////// Step 3:
116 copy->SetWriteModeToRGB();
117 if( !copy->WriteDcmExplVR(output) )
119 std::cout << " Failed" << std::endl
120 << " " << output << " not written" << std::endl;
133 //////////////// Step 4:
135 copy = new gdcm::FileHelper( output );
137 //Is the file written still gdcm parsable ?
138 if ( !copy->GetFile()->IsReadable() )
140 std::cout << " Failed" << std::endl
141 << " " << output << " not readable" << std::endl;
149 //////////////// Step 5:
151 size_t dataSizeWritten = copy->GetImageDataSize();
152 uint8_t *imageDataWritten = copy->GetImageData();
154 if (dataSize != dataSizeWritten)
156 std::cout << " Failed" << std::endl
157 << " Pixel areas lengths differ: "
158 << dataSize << " # " << dataSizeWritten << std::endl;
167 if (int res = memcmp(imageData, imageDataWritten, dataSize) !=0)
170 std::cout << " Failed" << std::endl
171 << " Pixel differ (as expanded in memory)." << std::endl;
179 std::cout << "OK." << std::endl ;
188 // Here we load a gdcmFile and then try to create from scratch a copy of it,
189 // copying field by field the dicom image
191 int TestCopyDicom(int argc, char *argv[])
195 // The test is specified a specific filename, use it instead of looping
197 const std::string input = argv[1];
198 const std::string reference = argv[2];
199 return CopyDicom( input, reference );
201 else if ( argc > 3 || argc == 2 )
203 std::cout << " Usage: " << argv[0]
204 << " (no arguments needed)." << std::endl;
205 std::cout << "or Usage: " << argv[0]
206 << " filename.dcm reference.dcm" << std::endl;
211 std::cout << " Description (Test::TestCopyDicom): "
213 std::cout << " For all images in gdcmData (and not blacklisted in "
214 "Test/CMakeLists.txt)"
216 std::cout << " apply the following to each filename.xxx: "
218 std::cout << " step 1: parse the image (as gdcmFile) and call"
219 << " IsReadable(). After that, call GetImageData() and "
220 << "GetImageDataSize() "
222 std::cout << " step 2: create a copy of the readed file and the new"
223 << " pixel data are set to the copy"
225 std::cout << " step 3: write the copy of the image"
227 std::cout << " step 4: read the copy and call IsReadable()"
229 std::cout << " step 5: compare (in memory with memcmp) that the two "
230 << "images " << std::endl
231 << " match (as expanded by gdcm)." << std::endl;
232 std::cout << std::endl;
235 int retVal = 0; //by default this is an error
236 while( gdcmDataImages[i] != 0 )
238 std::string filename = GDCM_DATA_ROOT;
239 filename += "/"; //doh!
240 filename += gdcmDataImages[i];
242 std::string output = "output.dcm";
244 if( CopyDicom( filename, output ) != 0 )