I'm trying to construct a Voronoi diagram using p5.js.So far I have managed to create an image representation of it by coloring pixels that belong to the same region, using the algorithm from this video. Here how it looks like:

Here's the code (a bit messy and terribly inefficient)

My problem is, such representation isn't very useful for me. I need get coordinates of regions' edges (including edges of a canvas). I've searched for ways to find edges of a shape on a 2d plane, but I feel like this is a very backwards approach. Is there a way to calculate a Voronoi diagram edges? If not, what's the simplest way to find edges by going over the pixels array?

I know there is quite a few resources on how to do this using numpy or in matlab, but I actually need a javaScript solution, if possible.

UPD: As I was researching the topic further and looking into related question brought up by Cristian in the comments, I came up to a conclusion that Future's algorithms is the best option for getting regions' edges. Fortunately, Wikipedia has links to its implementations. I tried this great implementation by Raymond Hill and it worked out great.