YIQ


Also found in: Dictionary, Acronyms, Wikipedia.

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.
Mentioned in ?
References in periodicals archive ?
The result obtained by means of applying the YIQ color model and discarding the I and Q channels has a better contrast than the one which could be obtained by only retaining the I component from the HSI (hue-saturation-value) color model.
Supporting the full spectrum of color for visual analysis, the Version 2 release allows users to edit in RGB, CMY, HSV, HLS, YIQ, XYZ, UVW, and GREY colorspaces.
It allows users to convert among different color representations, including RGB space used by color monitors and scanners, CMYK space used for printing, YIQ space used for broadcast, the CIELAB space used as an international standard, and to 15 other color spaces, including dictionaries of color names, the Munsell color system, and the German DIN standard.