I'm curious to know how one can implement the effect demonstrated here using OpenCV. I think it's some sort of displacement map filter but I'm not 100% sure.
After that page has fully loaded, move the mouse around to see the background image move (it's the effect I'm looking for).
Is it possible? How would I go about doing it?
See Question&Answers more detail:os
It's been almost 2 years since I've asked this question and I think it's time to answer it: the source code that implements this filter using OpenCV can be found in my GitHub repo.
The implementation is based on the documentation of Adobe Flash DisplacementMapFilter.
There's another tutorial I recommend people to read: Psyark’s DisplacementMapFilter Tutorial. It's old but accurate.
The result:
