Hi i would like to know how can achieve this effect?
http://vimeo.com/20866868

I been trying to achieve glowing trails but the result im getting is very poor.
Im using opencv to grab some "lighter pixels", then im applying blur and after that im appying additive alpha blending.

But the result im getting is very poor in comparation with that video.

Do anybody have an idea of how can achieve this?


thanks


here you can see the pics of my program