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YIQ format

YIQ coding

The YIQ Model is very closely related to the YUV model. It is particularly used in the NTSC video standard (used in the United States and Japan, among other countries)
The Y parameter represents luminance. I and Q stand for In-phase Quadrature. The relations between these parameters and the RGB model are the following:

  • Y = 0.299 R + 0.587 G + 0.114 B
  • I = 0.596 R - 0.275 G - 0.321 B
  • Q = 0.212 R - 0.523 G + 0.311 B


Last update on Thursday October 16, 2008 02:43:16 PM.
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