I don’t understand why we can’t have red screens or black screens.
It’s just green for some reason.
In: Technology
Imagine you had a bar that one side is blue and it slowly turns yellow from left to right.
At some point it’s green in the middle.
If I asked 10 people to point at the bar where exactly it turns green people would pick different points.
This shows that picking where a colour starts and ends can be tricky.
For image editing software, if you want to place a person in front of an imaginary background the software needs to clearly and quickly tell where that person ends and the background begins. The green screen is such an artificial colour it’s not like anything someone is likely to wear. So the computer can easily tell the by the contrast of the person’s clothes, hair, skin etc and the green screen.
If the person or subject or whatever you want to use is green and blue screen is used.
It’s all about an immediately obvious contrast of what you want and the background.
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