Mercurial > hg > orthanc-book
view Sphinx/source/plugins/python/pil-conversions.py @ 965:dfd33c9624d8
HTTPS encryption with OHIF
author | Sebastien Jodogne <s.jodogne@gmail.com> |
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date | Mon, 10 Jul 2023 18:01:56 +0200 |
parents | 92ca063536ed |
children | caf69d2ee070 |
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import json import PIL.Image import PIL.ImageDraw import orthanc URL = 'http://hg.orthanc-server.com/orthanc-tests/raw-file/Orthanc-1.11.0/Database/LenaTwiceWithFragments.dcm' USERNAME = '' PASSWORD = '' def OnChange(changeType, level, resource): if changeType == orthanc.ChangeType.ORTHANC_STARTED: # (1) Download a sample DICOM instance and decode it orthanc.LogWarning('Downloading: %s' % URL) lena = orthanc.HttpGet(URL, USERNAME, PASSWORD) dicom = orthanc.CreateDicomInstance(lena) orthanc.LogWarning('Number of frames: %d' % dicom.GetInstanceFramesCount()) # (2) Access the first frame of the instance as a PIL image frame = dicom.GetInstanceDecodedFrame(0) size = (frame.GetImageWidth(), frame.GetImageHeight()) if frame.GetImagePixelFormat() == orthanc.PixelFormat.RGB24: mode = 'RGB' else: raise Exception('Unsupported pixel format') image = PIL.Image.frombuffer(mode, size, frame.GetImageBuffer(), 'raw', mode, 0, 1) # (3) Draw a red cross over the PIL image draw = PIL.ImageDraw.Draw(image) draw.line((0, 0) + image.size, fill=(255,0,0), width=10) draw.line((0, image.size[1], image.size[0], 0), fill=(255,0,0), width=10) # (4) Convert back the modified PIL image to an Orthanc image buf = image.tobytes() a = orthanc.CreateImageFromBuffer(frame.GetImagePixelFormat(), image.size[0], image.size[1], len(buf) / image.size[1], buf) # (5) Create and upload a new DICOM instance with the modified frame tags = { 'SOPClassUID' : '1.2.840.10008.5.1.4.1.1.1', 'PatientID' : 'HELLO', 'PatientName' : 'WORLD', } s = orthanc.CreateDicom(json.dumps(tags), a, orthanc.CreateDicomFlags.GENERATE_IDENTIFIERS) orthanc.RestApiPost('/instances', s) orthanc.LogWarning('Image successfully modified and uploaded!') orthanc.RegisterOnChangeCallback(OnChange)