Direction Angrignon

Steps to build the output:

1. Record videos, preferrably in 60fps, save them in a videos directory and name them according to the stations.csv spreadsheet
2. Run the extract_frames.sh script which dumps all the video frames to PNG and colour-corrects a couple of stations (note, this will result in approximately 36,000 images, for a total of around 4 gigabytes.
3. Go through each station and find the first frame number that shows movement, and the last frame number that shows the platform, and record those in stations.csv
4. run render.py to build the final output