Luma definitions

lumə
A former monetary unit of Armenia, equal to1100 of a dram.
noun
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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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(numismatics) Currency unit of Armenia, worth one hundredth of Armenian dram.
noun
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The brightness in an image, as opposed to the saturation or chroma.
noun
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Origin of luma

From Armenian Õ¬Õ¸Ö‚Õ´Õ¡ (luma).