First of all, sorrry for my poor english, I am from Hungary.
I want to remove (replace) the background of a short video. The camera is fixed and the background is a simple image (unfortunatelly, not a simple color). I found the nature image on the internet in same resolution as the video. Is there a solution which makes my job so easy as the case of green background? Eg., separation by pixel comparison (the perfect solution can also handle the opacity of elements).
Many thanks for help!