luma

/ˈluːmə/
noun
  1. A unit of brightness or luminance, often used in lighting and display technology.
    • The luma value of the streetlight was measured to ensure it met safety standards.
    • In video editing, you can adjust the luma to brighten or darken the image.
    • The new monitor has a peak luma of 600 nits, making it great for HDR content.
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