Deoldify Vapoursynth filter

[Dan64]

Thank you Dan for your help, I'll keep on playing with this.  
For the tough scenes where for a few seconds a car slowly changes to a different color from silver to gold or when a person shirt starts blue, goes to pink and back to blue.  Your suggestion is to put a reference frame of the blue shirt, or the car as gold at the beginning of that scene and that will negate / minimize the pink shirt or the silver car from appearing.

yes you can try to enforce a given color if the scene don't change too much.

Dan