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luma
(redirected from LUMAS)

    Also found in: Acronyms, Wikipedia 0.06 sec.

luma

The black/gray/white information in a video signal, represented as the letter "Y." Color information is transmitted as luma (brightness) and chroma (color). The luma is a weighted sum of the RGB colors. See luminance, YUV and YUV/RGB conversion formulas.
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