B-Y

Color difference signal From Wikipedia, the free encyclopedia

$B-Y$ indicates a color difference signal between blue (B) and a luminance component, as part of a luminance (Y) and chrominance (C) color model. It has different meanings depending on the exact model used:

U in YUV, a generic model used for analog and digital image formats
Cb in YCbCr, used for digital images and video
Pb in YPbPr, used in analog component video
Db in YDbDr, used in analog SECAM

See also

R-Y – The corresponding signal for red

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