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creating dicom instances in Python
author Sebastien Jodogne <s.jodogne@gmail.com>
date Thu, 10 Jun 2021 17:07:14 +0200
parents 17c1ff4e6ae4
children 29e49f03dc27
comparison
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694:bcd1a6a89280 695:f4fc12ed00ee
220 Here is a basic Python script that registers two new routes in the 220 Here is a basic Python script that registers two new routes in the
221 REST API:: 221 REST API::
222 222
223 import orthanc 223 import orthanc
224 import pprint 224 import pprint
225 225
226 def OnRest(output, uri, **request): 226 def OnRest(output, uri, **request):
227 pprint.pprint(request) 227 pprint.pprint(request)
228 print('Accessing uri: %s' % uri) 228 print('Accessing uri: %s' % uri)
229 output.AnswerBuffer('ok\n', 'text/plain') 229 output.AnswerBuffer('ok\n', 'text/plain')
230 230
258 .. highlight:: python 258 .. highlight:: python
259 259
260 This sample uploads a DICOM file as soon as Orthanc is started:: 260 This sample uploads a DICOM file as soon as Orthanc is started::
261 261
262 import orthanc 262 import orthanc
263 263
264 def OnChange(changeType, level, resource): 264 def OnChange(changeType, level, resource):
265 if changeType == orthanc.ChangeType.ORTHANC_STARTED: 265 if changeType == orthanc.ChangeType.ORTHANC_STARTED:
266 print('Started') 266 print('Started')
267 267
268 with open('/tmp/sample.dcm', 'rb') as f: 268 with open('/tmp/sample.dcm', 'rb') as f:
269 orthanc.RestApiPost('/instances', f.read()) 269 orthanc.RestApiPost('/instances', f.read())
270 270
271 elif changeType == orthanc.ChangeType.ORTHANC_STOPPED: 271 elif changeType == orthanc.ChangeType.ORTHANC_STOPPED:
272 print('Stopped') 272 print('Stopped')
273 273
274 elif changeType == orthanc.ChangeType.NEW_INSTANCE: 274 elif changeType == orthanc.ChangeType.NEW_INSTANCE:
275 print('A new instance was uploaded: %s' % resource) 275 print('A new instance was uploaded: %s' % resource)
276 276
277 orthanc.RegisterOnChangeCallback(OnChange) 277 orthanc.RegisterOnChangeCallback(OnChange)
278 278
279 279
280 280
281 .. warning:: 281 .. warning::
830 } 830 }
831 831
832 http.createServer(requestListener).listen(8000); 832 http.createServer(requestListener).listen(8000);
833 833
834 834
835 835 .. _python_create_dicom:
836
837 Creating DICOM instances (new in 3.1)
838 .....................................
839
840 .. highlight:: python
841
842 The following sample Python script will write on the disk a new DICOM
843 instance including the traditional Lena sample image, and will decode
844 the single frame of this DICOM instance::
845
846 import json
847 import orthanc
848
849 def OnChange(changeType, level, resource):
850 if changeType == orthanc.ChangeType.ORTHANC_STARTED:
851 tags = {
852 'SOPClassUID' : '1.2.840.10008.5.1.4.1.1.1',
853 'PatientID' : 'HELLO',
854 'PatientName' : 'WORLD',
855 }
856
857 with open('Lena.png', 'rb') as f:
858 img = orthanc.UncompressImage(f.read(), orthanc.ImageFormat.PNG)
859
860 s = orthanc.CreateDicom(json.dumps(tags), img, orthanc.CreateDicomFlags.GENERATE_IDENTIFIERS)
861
862 with open('/tmp/sample.dcm', 'wb') as f:
863 f.write(s)
864
865 dicom = orthanc.CreateDicomInstance(s)
866 frame = dicom.GetInstanceDecodedFrame(0)
867 print('Size of the frame: %dx%d' % (frame.GetImageWidth(), frame.GetImageHeight()))
868
869 orthanc.RegisterOnChangeCallback(OnChange)
870
871
872
873
836 874
837 Performance and concurrency 875 Performance and concurrency
838 --------------------------- 876 ---------------------------
839 877
840 **Important:** This section only applies to UNIX-like systems. The 878 **Important:** This section only applies to UNIX-like systems. The