"A picture is worth a thousand words"...

As you can see, the first frame is normal. After few frames, the image is pinkish, like someone put a pink filter on it... during the whole movie, the picture shifts from normal scenes to pinkish scenes and back for many times...

I'd like to use some scenes for my project, but I don't know how to restore proper colors... I tested the avisynth filter Colourlike; the results are good but not perfect.

Is there someone who could use the overlay function of avisynth (or another method) to "de-filter" the pinkish scenes? I mean, take the former picture (PNG not compressed), split the two frames, overlay the two frames (taking the right part of the picture as reference), find the color difference, and use the results as a "negative filter" to defilter the pink-shifted scenes...