Hue and saturation are said to collectively describe the:

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RRB ALP Electronics Mechanic 23 Jan 2019 Official Paper (Shift 2)
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  1. chromaticity of TV
  2. brightness of TV
  3. luminance of TV
  4. AGC of TV

Answer (Detailed Solution Below)

Option 1 : chromaticity of TV
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The correct answer is option 1.

Chromaticity

  • The chromaticity diagram represents the spectral colors and their mixtures based on the values of the primary colors(i.e. Red, Green, Blue) contained by them.
  • Chromaticity contains two parameters i.e, hue and saturation. When we put hue and saturation together then it is known as Chrominance.
  • Hue is color (blue, green, red, etc.) and saturation refers to how strong or weak a color is (high saturation being strong). 
  • The higher the saturation of a color, the more vivid and intense it is.
  • The lower a color's saturation, the closer it is to pure gray on the grayscale.

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