Why did you choose green as the background of film recording?

Because green is brighter, there will be no mistakes when keying. In addition, blue is also common. These two colors are used in different environments. If the actor's clothes in front of the screen are green, use the blue screen. If the clothes are blue, use a green screen. The reason is the same. As long as it is a uniform, stable and noiseless background, the computer will not recognize the error. And blue and green have better reflectivity. If you don't eat it up, you won't absorb all the light, which is also good for computer recognition!

To make it look like an invisible man, let the actors wear the same color clothes as behind the scenes!