What term represents the intensity of light in video signals?

What term represents the intensity of light in video signals?

• A. Chrominance
• B. Luminance
• C. RGB Color Space
• D. Teleprompter

Answer: (B)

Brightness or light intensity in video signals is represented by luminance. Luminance encodes how bright each part of the scene appears, separate from color information. In many video standards, imagery is split into luminance (brightness) and chrominance (color) components, with the Y' channel carrying the brightness and the Cb/Cr channels carrying color. The RGB color space encodes color through separate red, green, and blue channels but does not convey brightness as a single dedicated component. A teleprompter is a device for displaying script and isn’t related to light intensity in signals. So, luminance is the term for light intensity in video signals.

Brightness or light intensity in video signals is represented by luminance. Luminance encodes how bright each part of the scene appears, separate from color information. In many video standards, imagery is split into luminance (brightness) and chrominance (color) components, with the Y' channel carrying the brightness and the Cb/Cr channels carrying color. The RGB color space encodes color through separate red, green, and blue channels but does not convey brightness as a single dedicated component. A teleprompter is a device for displaying script and isn’t related to light intensity in signals. So, luminance is the term for light intensity in video signals.