How to clear a .gif image from a filter by confronting with the original image

[rich2005]

Not dead, not understanding the message.

Is it.
You added an overlay (png file) to an animation (gif file)
Now you want to use the same png file to remove the overlay from the animation.
You can do this on a one layer at a time basis but you want a batch process ?

then this

Quote: maybe applying on the way a mask in small zones so in those zones they stay in the new form?

What small zones ? Give a before and after example.