I Want to Be a Weather Person…and Other Uses for the Green Screen

Green Screen

Chroma key compositing, or chroma keying, is a special effects/post-production technique for compositing (layering) two images or video streams together based on color hues (Chroma range).


Let’s make this simple. We’ve all watched the weather on the local news. Your favorite meteorologist is actually standing in front of a green screen and has a monitor in front of him that outputs the rendered video forecast. While the map is broadcasting on one video output, another camera super imposes the weatherperson onto that image so now the weatherperson and the map are combined.

Ok, not everyone grew up wanting to be a meteorologist like me, so what else can the green screen be used for?

Take a photo of your family and with the magic of the green screen and Photoshop, you can be on a beach, in front of the Eiffel Tower, or in a UFO!

Check out our Calendar of Events for scheduled green screen workshops or email makerspace@dubuque.lib.ia.us to set up a photo session.

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