Why do you use green screen?

Question 1: Why do you use green screen when making a movie? In order to replace the blue or green color of the background with the desired background object in post-production, the computer keyed out the blue or green color of the background. Green can also be replaced with blue color. But this green and this blue in color blocking science has a unique digital label that is pure blue and pure green. Generally in Europe and the United States with green. Because the eyes of Europeans and Americans are generally blue. In order to prevent accidents. Europe and the United States use more green touch. And Asia Japan and other places with blue also have. Generally if there is a color that overlaps with the background color will be replaced. If an actor has green clothes in a certain stunt, he should use a blue background. And vice versa. So if you look closely at the shots with stunts there is usually no blue and green 2 colors **** exist. This brings a lot of trouble to the later keying.

Problem 2: green curtain buckle like why use green The reason for doing so is very simple, easy to deal with the computer, where the curtain color part of the transparent, coupled with the need for the background, the subject of special effects came out. With green as the curtain color is very reasonable, because the general subject is the characters, people's clothes, hair, skin color, the least visible color is green, then the application of green curtain should be the most widely used, we gradually put the stunt background, called the green screen.

Question 3: What is the green screen for making movies? Post? Why green ... It's post. Used to key the picture to do background ah and so on. The green is because. The color contrast with the human body is the greatest, so it is easier to post

Question 4: Why do movie special effects use green as a background? No matter at home and abroad are useful. Know is the need for post-production special effects processing, but the details can not be said. So copied someone else's answer to you. Thanks to the original answerer. The following is the content of the copy: factory in the movie stunt production often use blue screen or green screen as a background, in order to later keying synthesis.

In my experience, since blue is the complementary color to human skin, it should be easiest to key in on a blue screen, but in fact in recent years I've seen more stunts filmed on green screens, perhaps because the fluorescent green color used in green screens is easier to separate from the foreground in a computer system, and because it's brighter and less likely to produce a black border.

Thanks again to the original respondent.

Question 5: Why is the green background wall used in film and television special effects In fact, before there is a blue screen, and even other colors of the screen, but because of the role of skin color and eyes and other reasons, and now are more green screen, because the green screen is easier to buckle the image

Question 6: Why is now a lot of footage in the car with a green screen to do the car in a narrow space, the equipment can not be put in or to find the bad perspective. It can only be synthesized later, so green screen to do.

Problem seven: special effects are so bad that you can see the green screen keying, keying shooting curtain why use green The first problem is the quality of work.

On why the green can be explained from two aspects:

The human body (including clothes) generally green blue at least, so it is good to key, which is currently the more mainstream explanation.

However, the above explanation is not necessarily correct, in essence, the current mainstream Alai, RED are CMOS monolithic, Bayer array above the 4 * 4 dot matrix inside 8 green units, 4 blue units, 4 red units, so from the collection of data on the green information is the most. Therefore, the mainstream is green, followed by blue, after all, the background brightness of green is higher than blue, you can play less lights.

That's basically it, but keying is not just color key keying, there is also luminance key keying and so on.

Question 8: How to do the green screen and black screen before editing Love Edit comes with a black screen video, if you want to make a green screen video, you can also make it

It is quite easy to operate, to make a green screen video, in the main interface, import the video into the screen, switch to the screen style panel, select the screen column, add a free scale to the video with one click

And then in the right-hand side of the effect settings, adjust the scaling to the minimum.

Then, in the right effect settings, adjust the zoom ratio to the minimum, and then change the background color to green.

You can also create subtitle effects such as gravel flying, ink dripping, and light spots in the rain in one click, as well as whiten the skin of the characters in the video in one click, adjust the tones of vintage, warm, romantic, and cinematic, and fast-forward and slow playback the video in one click

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