How do I make a video animation with transparent background?

[Christian Gollwitzer]

Am 09.08.16 um 14:44 schrieb Martin Schöön:
> Using this example:
> http://matplotlib.org/examples/animation/moviewriter.html
> and this tutorial:
> https://www.youtube.com/watch?v=h0F5X4b7jug
> I have covered a lot of ground.
>
> What I have failed to achieve is a graph with a transparent
> background. None of the leads I have found searching the Internet
> have helped me. (I may have found the needed information without
> realising it...)
>
> Any help is appreciated.


Here is a simple idea: Draw the background with a colour, that is not 
used in the graphs, like bright blue or green. Any decent video editing 
software should support colour keying, i.e. masking the green parts out, 
becuase this is used in film production (green screening)

	Christian