Which technique is also known as green screening?

Which technique is also known as green screening?

• A. B-Roll
• B. Chroma Key
• C. Dateline
• D. Crawl

Answer: (B)

Chroma key is the technique used for green screening. It works by shooting a subject in front of a solid color backdrop—traditionally bright green—and then using video software to remove that color and replace it with a different background, making it look like the subject is in another location. The color is chosen because it’s distinct from most skin tones and wardrobe, and cameras can separate it cleanly, even with some lighting variation. While green is common, blue screens are used when green would clash with clothing or logos. This method is widely used for weather forecasts, virtual sets, and special effects. B-Roll is extra footage that supports a story, a Dateline is a news segment or location from which a story is reported, and a Crawl is on-screen scrolling text—none of these are background-replacement techniques.

Chroma key is the technique used for green screening. It works by shooting a subject in front of a solid color backdrop—traditionally bright green—and then using video software to remove that color and replace it with a different background, making it look like the subject is in another location. The color is chosen because it’s distinct from most skin tones and wardrobe, and cameras can separate it cleanly, even with some lighting variation. While green is common, blue screens are used when green would clash with clothing or logos. This method is widely used for weather forecasts, virtual sets, and special effects. B-Roll is extra footage that supports a story, a Dateline is a news segment or location from which a story is reported, and a Crawl is on-screen scrolling text—none of these are background-replacement techniques.