Question

which of the following best describes chroma keying (green screen technology)?
a.) a tool to enhance the frame rate of animated sequences
b.) a method for replacing a solid - colored background with a different image or video
c.) the process of painting realistic landscapes for film backdrops
d.) a technique used to trace over live - action footage frame by frame

Explanation:

Chroma keying (green screen technology) is a post - production technique. In this technique, a solid - colored background (usually green or blue) in a video or image is identified and then replaced with another image or video. This is widely used in the film, television, and video production industries to create special effects, composite different scenes, etc.

• Option a: Enhancing the frame rate of animated sequences is not related to chroma keying. Chroma keying is about background replacement, not frame rate manipulation.
• Option c: Painting realistic landscapes for film backdrops is a traditional art - related process for creating physical backdrops, which is different from the digital background - replacement nature of chroma keying.
• Option d: Tracing over live - action footage frame by frame is more related to rotoscoping (a technique to create a matte for an object in motion) rather than chroma keying.

Answer:

B. A method for replacing a solid - colored background with a different image or video