YIQ

(communication) The method of representing colors in color television systems, where Y represents the luminosity, which is also the black-and-white signal, I represents red minus the luminosity, and Q represents blue minus the luminosity.

YIQ

The original color space used for encoding NTSC video in 1953, which was very similar to YUV. Only a small number of TV sets that decoded YIQ were ever manufactured, and it became obsolete. All NTSC encoding today is YUV. See YUV.

YiQ

Acronym	Definition
YiQ➣Y (perceived luminance), I, Q (color/luminance information) NTSC color model

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