So many libraries are beginning to utilize green screen technology in their libraries, and you might be next! Having a green screen in your library opens up a fun world for patrons of all ages, and is a great way to engage your community in a fun way. There are several great options out there for bringing green screen technology to your library. First, let’s get a quick understanding of what’s behind the screen.
Green screen technology relies on a process called chroma key, and is fairly well-known around the world. It’s seen whenever we watch the weather, and in most TV shows and movies we watch. The chroma key process involves combining two separate digital pictures or video by removing a specific color from one image and turning that color transparent. In this case, the color that is being replaced is a bright green (and sometimes blue). Green is an excellent choice as it has very few to no common pigments with our own skin color.
The only catch? Green clothing! Wearing green clothing in front of a green screen might leave you with just a floating head in a picture!
Here is what you will need to get started with a green screen:
- Bright green backdrop: these comes in various shapes, sizes, and fabrics
- Many people are able to just hang green muslin from a wall
- Many ready-made green screens come with strong stands and can be placed almost anywhere you need them.
- DSLR camera or smartphone: either one will do the trick!
- If you are using a DSLR camera, you will need a computer and software
- Consider a tripod for stability, even for the smartphone
- App or computer software: many green screen apps are sufficient for what a
library needs, but there is some professional-level software available as
well
- Note that a good green screen app will cost money. There are free apps out there, but they might not get the job done as well
- Some apps are only compatible with Apple devices
- Many programs for a PC or Mac help to create a photobooth experience with a countdown and the ability for the patron to see themselves in a monitor so they can be sure they are posing correctly. You can also save the pictures taken directly to a computer for easy sharing.
- Printer: if you would like to offer patrons the option to take their picture home, you will need an appropriate printer; a photo printer — wireless or wired — works great.
- A fun selection of digital images on the chosen device to replace the green color
- Lighting: Your area should be well-lit, either naturally or with additional stand lights
Once you have all of your elements set up, the fun can begin! You can have patrons line up to have their picture taken, give them numbers, have a sign-up list — whatever is best for you. Have the patron(s) choose which digital background they would like, and get that loaded into the app or software, then reset your scene (pull the backdrop taut, smooth out wrinkles, etc.) and get ready to shoot. Before you take the picture, have the patrons get their poses ready, and give them a countdown if one is not included in your software. Get the picture printed or emailed and you’re done!
Trips and Tricks for Your Green Screen Experience
- When hanging your backdrop, make sure it’s pulled taut, as wrinkle-free as possible, and completely covers the photo area. The flatter the green screen, the easier it is
- Have the camera far away enough to get everyone in the picture, but not so far away that space outside of the screen will be in the shot.
- If possible, remind patrons not to wear green, especially bright green, as it will be replaced by the background image.
- Save images to post on social media (with the patrons’ permission)!