We all loved the movies Jurassic Park, Avenger series, Gravity, etc. right? We know all the scenes were not real and many of them had visual effects but still we watch it innumerable times and enjoy it with popcorn. That’s the magic of green screens or chroma keying technique
Chroma key is a technique of using a solid color behind a person or a scene and later replacing that solid color with some visual effects, background images, to combine two images, videos, color separation post the production. You can also use green screen overlay gifs that are entertaining. The chroma key technique is also called “keying” or keying out.