YIQ
YIQ，是NTSC（National Television Standards Committee）电视系统标准。Y是提供黑白电视及彩色电视的亮度信号（Luminance），即亮度（Brightness），I代表In-phase，色彩从橙色到青色，Q代表Quadrature-phase，色彩从紫色到黄绿色。
YIQ
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YIQ
YIQ is the color space used by the NTSC color TV system, employed mainly in North and Central America, and Japan. I stands for in-phase, while Q stands for quadrature, referring to the components used in quadrature amplitude modulation. Some forms of NTSC now use the YUV color space, which is also used by other systems such as PAL.
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