I'm trying to reproduce this "color feedback" effect that was popular in the 80's (thanks to the Scanimate) :
This one is from the song "Earth, Wind and Fire - Let's groove"
Basically it work like this :
Current frame = Blend(Video input, ColorShift(Previous Frame))
What i tried so far :
- Add "Color key" effect to separate subject from the background.
- Add "Echo" effect. Set operator to "Composite In Front". Increase "Number of Echoes" to 20.
It works pretty good to reproduce the basic feedback effect. However i'm still missing the rainbow colors.
I have tried to put some color correction effect, but it applies on the whole image, not only on the previous frames.
Any idea how i can reproduce this effect ?