[Feature Request] Add support to vs-ddcolor

[Dan64]

Hello Selur,

   I tried to apply "ddcolor" filter to colorize a BW movie.
   But sometime in the movie the filter provides flashing colors, and I'd like to find a way to reduced this effect.
  
   At the following link you can find a sample, that once has been colorized with "ddcolor" will have the reported problem

   https://filebin.net/yf0on2jxae90ip19

   Do you know if there is a filter in Hybrid that can be used to reduce the flashing color effect ?  

Thanks,
Dan

P.S.
The movie will be deleted after 6 days