Vibrant.js [1] also does this. It is nice to look into the source code to see how it is done. But in my experience it works around 80% of the time because the

Vibrant.js [1] also does this. It is nice to look into the source code to see how it is done. But in my experience it works around 80% of the time because there are so many exceptions. [1] https://jariz.github.io/vibrant.js/ https://jariz.github.io/vibrant.js/