One of the mysteries of the English language finally explained.
The colorimetric difference between a given color in a television picture and a standard color of equal luminance.
- ‘The value of a blending coefficient for a pixel in the graphic is based on the luminance and chrominance characteristics of a neighborhood of pixels in the video.’
- ‘This transform space allows luminance and chrominance to be processed separately.’
- ‘Typically, each pixel is encoded for luminance, but chrominance is averaged for groups of four pixels, saving about half the bandwidth required to transmit the full-resolution image.’
- ‘Color images typically have three components, corresponding to the red, green, and blue intensities, or the luminance and two chrominance components.’
- ‘A sequence of passes separates the luminance and chrominance information from the composite video signal and demodulates the color carrier to separate out color information.’
1950s: from Greek khrōma ‘color’, on the pattern of luminance.
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