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Simple open-source DICOM browser/viewer in Python and Qt4.

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Simple open-source multi-platform DICOM browser/viewer in Python and Qt.

NOTE This project has not been updated for a long time. Currently, I have no capacity to improve it. If you feel like contributing, I'll be happy to accept your enhancements / bug fixes. The UI seems not to be entirely working...



  • Easy (and fast) viewing of all images in a directory
  • Zooming (1:N and N:1)
  • Mouse control of window center and width (as in Aeskulap Viewer)
  • Proper measurement of Hounsfield units and position by mouse
  • PNG image export

To Do

  • Better zooming
  • Better MRI images support
  • RT dose images support
  • View in different planes (rectangular + others)
  • Coordinate mapping (using translation and rotation matrix)
  • Integration of anonymization features (see )
  • Information from the DICOM file in user-friendly display


  • Python 3.6+
  • qtpy (and therefore PyQt4 / PyQt5 / PySide - not automatically installed by pip!)
  • pydicom (1.3)

Tested on Linux and Windows.


The easiest way is pip install pydiq.


Usage: pydiq [OPTIONS] [PATH]

  --help  Show this message and exit.


Currently, the viewer supports only Computed Radiography (CR), Computed Tomography (CT) and Magnetic Resonance Imaging (MRI) images with normal orientation (x, y, z) in one-slice-per-file format.

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