This algorithm detects the labels of the rings in a placido ring image which can be extremely helpful for corneal topography.
Note: Tilt of the ellipse has not been used for updating ellipse parameters due to which the code might be ineffective at times.
Surya (2023). Elliptical Scanning Algorithm (https://github.com/psurya1994/elliptical-scanning-algorithm), GitHub. Retrieved .
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Inspired by: fit_ellipse
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updated description, added screenshot