The Health Data Hub, co-organizer of the challenge, just released a python module to detect blurriness in pathology slides. The module is available on GitLab at this link: Health Data Hub / Pathology Slides Blur Detection · GitLab.
The module is designed to help challengers quickly identify blurry slides so that they can be treated with caution during the analysis. It is essentially based on the Python package blur-detector.
If you have any questions about the package or would like to contribute, please feel free to open issues or merge requests on the repo, we will be happy to help !