1 /*=========================================================================
4 Module: $RCSfile: TestWriteSimple.cxx,v $
6 Date: $Date: 2005/03/02 16:39:28 $
7 Version: $Revision: 1.26 $
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 =========================================================================*/
20 * Write a dicom file from nothing
21 * The written image is 256x256, 8 bits, unsigned char
22 * The image content is a horizontal grayscale from
26 #include "gdcmFileHelper.h"
27 #include "gdcmDebug.h"
34 int sizeX; // Size X of the image
35 int sizeY; // Size Y of the image
36 int sizeZ; // Size Z of the image
37 int components; // Number of components for a pixel
38 int componentSize; // Component size (in bits : 8, 16)
39 int componentUse ; // Component size (in bits)
40 int sign; // Sign of components
41 char writeMode; // Write mode
43 // - 'e' : Explicit VR
44 // - 'i' : Implicit VR
48 {256, 256, 1, 1, 8, 8, 0, 'a'},
49 {256, 256, 1, 1, 8, 8, 0, 'e'},
50 {256, 256, 1, 1, 8, 8, 0, 'i'},
52 {512, 256, 1, 1, 8, 8, 0, 'a'},
53 {512, 256, 1, 1, 8, 8, 0, 'e'},
54 {512, 256, 1, 1, 8, 8, 0, 'i'},
56 {256, 512, 1, 1, 8, 8, 0, 'a'},
57 {256, 512, 1, 1, 8, 8, 0, 'e'},
58 {256, 512, 1, 1, 8, 8, 0, 'i'},
60 {256, 512, 1, 1, 16, 16, 0, 'a'},
61 {256, 512, 1, 1, 16, 16, 0, 'e'},
62 {256, 512, 1, 1, 16, 16, 0, 'i'},
63 {256, 512, 1, 1, 16, 16, 0, 'a'},
64 {256, 512, 1, 1, 16, 16, 0, 'e'},
65 {256, 512, 1, 1, 16, 16, 0, 'i'},
67 {512, 256, 10, 1, 8, 8, 0, 'a'},
68 {512, 256, 10, 1, 8, 8, 0, 'e'},
69 {512, 256, 10, 1, 8, 8, 0, 'i'},
70 {512, 256, 10, 3, 8, 8, 0, 'a'},
71 {512, 256, 10, 3, 8, 8, 0, 'e'},
72 {512, 256, 10, 3, 8, 8, 0, 'i'},
74 {256, 256, 1, 1, 8, 8, 1, 'a'},
75 {256, 256, 1, 1, 8, 8, 1, 'e'},
76 {256, 256, 1, 1, 8, 8, 1, 'i'},
78 {512, 256, 1, 1, 8, 8, 1, 'a'},
79 {512, 256, 1, 1, 8, 8, 1, 'e'},
80 {512, 256, 1, 1, 8, 8, 1, 'i'},
82 {256, 512, 1, 1, 8, 8, 1, 'a'},
83 {256, 512, 1, 1, 8, 8, 1, 'e'},
84 {256, 512, 1, 1, 8, 8, 1, 'i'},
86 {256, 512, 1, 1, 16, 16, 1, 'a'},
87 {256, 512, 1, 1, 16, 16, 1, 'e'},
88 {256, 512, 1, 1, 16, 16, 1, 'i'},
89 {256, 512, 1, 1, 16, 16, 1, 'a'},
90 {256, 512, 1, 1, 16, 16, 1, 'e'},
91 {256, 512, 1, 1, 16, 16, 1, 'i'},
93 {512, 256, 10, 1, 8, 8, 1, 'a'},
94 {512, 256, 10, 1, 8, 8, 1, 'e'},
95 {512, 256, 10, 1, 8, 8, 1, 'i'},
96 {512, 256, 10, 3, 8, 8, 1, 'a'},
97 {512, 256, 10, 3, 8, 8, 1, 'e'},
98 {512, 256, 10, 3, 8, 8, 1, 'i'},
99 {0, 0, 1, 1, 8, 8, 0, 'i'} // to find the end
102 int WriteSimple(Image &img)
104 std::string fileName = "TestWriteSimple.dcm";
106 // Step 1 : Create the header of the image
107 std::cout << " 1...";
108 gdcm::File *fileToBuild = new gdcm::File();
109 std::ostringstream str;
111 // Set the image size
114 fileToBuild->InsertValEntry(str.str(),0x0028,0x0011); // Columns
118 fileToBuild->InsertValEntry(str.str(),0x0028,0x0010); // Rows
124 fileToBuild->InsertValEntry(str.str(),0x0028,0x0008); // Number of Frames
127 // Set the pixel type
129 str << img.componentSize;
130 fileToBuild->InsertValEntry(str.str(),0x0028,0x0100); // Bits Allocated
133 str << img.componentUse;
134 fileToBuild->InsertValEntry(str.str(),0x0028,0x0101); // Bits Stored
137 str << img.componentSize - 1;
138 fileToBuild->InsertValEntry(str.str(),0x0028,0x0102); // High Bit
140 // Set the pixel representation
143 fileToBuild->InsertValEntry(str.str(),0x0028,0x0103); // Pixel Representation
145 // Set the samples per pixel
147 str << img.components;
148 fileToBuild->InsertValEntry(str.str(),0x0028,0x0002); // Samples per Pixel
150 if( !fileToBuild->IsReadable() )
152 std::cout << "Failed\n"
153 << " Prepared image isn't readable\n";
159 // Step 2 : Create the output image
161 if( img.componentSize%8 > 0 )
163 img.componentSize += 8-img.componentSize%8;
165 size_t size = img.sizeX * img.sizeY * img.sizeZ
166 * img.components * img.componentSize / 8;
167 unsigned char *imageData = new unsigned char[size];
169 // FIXME : find a better heuristic to create the image
170 unsigned char *tmp = imageData;
171 for(int k=0;k<img.sizeZ;k++)
173 for(int j=0;j<img.sizeY;j++)
175 for(int i=0;i<img.sizeX;i++)
177 for(int c=0;c<img.components;c++)
180 if( img.componentSize>8 )
184 tmp += img.componentSize/8;
190 // Step 3 : Create the file of the image
192 gdcm::FileHelper *file = new gdcm::FileHelper(fileToBuild);
193 file->SetImageData(imageData,size);
195 // Step 4 : Set the writting mode and write the image
198 file->SetWriteModeToRaw();
199 switch (img.writeMode)
201 case 'a' : // Write an ACR file
202 file->SetWriteTypeToAcr();
205 case 'e' : // Write a DICOM Explicit VR file
206 file->SetWriteTypeToDcmExplVR();
209 case 'i' : // Write a DICOM Implicit VR file
210 file->SetWriteTypeToDcmImplVR();
214 std::cout << "Failed\n"
215 << " Write mode '"<<img.writeMode<<"' is undefined\n";
223 if( !file->Write(fileName) )
225 std::cout << "Failed\n"
226 << "File in unwrittable\n";
234 // Step 5 : Read the written image
236 gdcm::FileHelper *reread = new gdcm::FileHelper( fileName );
237 if( !reread->GetFile()->IsReadable() )
239 std::cerr << "Failed" << std::endl
240 << "Could not read written image : " << fileName << std::endl;
248 // Step 6 : Compare to the written image
250 size_t dataSizeWritten = reread->GetImageDataSize();
251 uint8_t *imageDataWritten = reread->GetImageData();
253 // Test the image size
254 if (fileToBuild->GetXSize() != reread->GetFile()->GetXSize() ||
255 fileToBuild->GetYSize() != reread->GetFile()->GetYSize() ||
256 fileToBuild->GetZSize() != reread->GetFile()->GetZSize())
258 std::cout << "Failed" << std::endl
259 << " X Size differs: "
260 << "X: " << fileToBuild->GetXSize() << " # "
261 << reread->GetFile()->GetXSize() << " | "
262 << "Y: " << fileToBuild->GetYSize() << " # "
263 << reread->GetFile()->GetYSize() << " | "
264 << "Z: " << fileToBuild->GetZSize() << " # "
265 << reread->GetFile()->GetZSize() << std::endl;
274 // Test the data size
275 if (size != dataSizeWritten)
277 std::cout << "Failed" << std::endl
278 << " Pixel areas lengths differ: "
279 << size << " # " << dataSizeWritten << std::endl;
288 // Test the data's content
289 if ( memcmp(imageData, imageDataWritten, size) !=0 )
291 std::cout << "Failed" << std::endl
292 << " Pixel differ (as expanded in memory)." << std::endl;
301 std::cout << "OK" << std::endl;
311 int TestWriteSimple(int argc, char *argv[])
315 std::cerr << "usage: \n"
316 << argv[0] << " (without parameters) " << std::endl
321 // gdcm::Debug::DebugOn();
325 while( Images[i].sizeX>0 && Images[i].sizeY>0 )
327 std::cout << std::endl << "Test n :" << i << std::endl;
328 ret += WriteSimple(Images[i]);