______ is used to describe information about the hue and saturation of a colour.

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RRB ALP Mechanic Radio & TV 23 Jan 2019 Official Paper (Shift 3)
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  1. Chrominance
  2. Luminance
  3. Contrast
  4. Intensity

Answer (Detailed Solution Below)

Option 1 : Chrominance
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The correct option is 1

Concept:

Hue and saturation are taken together are called chromaticity and therefore, a color may be characterized by its brightness and chromaticity.

Color consists of three main integral parts:

1. Hue: defined technically (in the CIECAM02 model) as "the degree to which a stimulus can be described as similar to or different from stimuli that are described as red, orange, yellow, green, blue, purple".

2. Value: the relative degree of black or white mixed with a given hue.

3. Saturation: Saturation is also referred to as “intensity” and “chroma.” It refers to the dominance of hue in the color. 100% saturation means there’s no addition of gray to the hue. The color is completely pure.

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