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scikit-surgeryvideoutils is a python project containing a few test and demo utilities, based around opencv-contrib-python for video processing and PySide2 for GUI windows and widgets.

  • - shows a millisecond timer and video image to measure lag

  • - extracts charuco points and annotates video image with each id detected.

scikit-surgeryvideoutils is part of the SNAPPY software project, developed at the Wellcome EPSRC Centre for Interventional and Surgical Sciences, part of University College London (UCL).


You can pip install directly from the repository as follows:

pip install git+



You can clone the repository using the following command:

git clone

Running the tests

You can run the unit tests by installing and running tox:

pip install tox


Please see the contributing guidelines.


Supported by Wellcome and EPSRC.

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