Data (raw data from x-ray machine in the Hydrodynamic-lab and processed videos- converted to mp4 or ogg) is published on https:osf.io/7whdb
In html, videos in avi format can't be used. This is the format obtained from the x-ray machine image processing. The avi videos were converted using ffmpeg and the duration was reduced to effective slide motion.
Please send issues and pull requests.
Reference: The code is adapted from tutorial for opencv.js version 4.2.0 (https://docs.opencv.org)