Component Video Equations


Y, B-Y, R-Y commonly used for analog encoding
Format1125/60/2:1, 720/60/1:1525/59.94/2:1, 625/50/2:1, 1250/50/2:1
Y0.2126R + 0.7152G + 0.0722B0.299R +0.587G + 0.114B
B-Y-0.2126R - 0.7152G + 0.9278B-0.701R -0.587G + 0.886B
R-Y0.7874R - 0.7152G - 0.0722B0.701R - 0.587G - 0.114B

Y, Pb, Pr analog component
Format1125/60/2:1, 720/60/1:11920 x 1080 (SMPTE 274M)
1280 x 720 (SMPTE 296M) 		525/59.94/2:1, 625/50/2:1, 1250/50/2:1
Y0.212R + 0.701G + 0.087B 0.2126R + 0.7152G + 0.0722B0.299R +0.587G + 0.114B
Pb(B-Y) / 1.826[0.5 / (1 - 0.0722)] (B - Y)0.564(B - Y)
Pr(R-Y) / 1.576[0.5 / (1 - 0.2126)] (R - Y)0.713(R - Y)

Y, Cb, Cr, scaled and offset for digital quantization
Format1920 x 1080 (SMPTE 274M)
1280 x 720 (SMPTE 296M) 		525/59.94/2:1, 625/50/2:1, 1250/50/2:1
Y0.2126R + 0.7152G + 0.0722B0.299R +0.587G + 0.114B
Cb0.5389(B - Y) + 350mV0.564(B - Y) + 350mV
Cr0.6350(R-Y) + 350mV0.713(R - Y) + 350mv

Extracted from: p6, 'A Guide to Standard and High-Definition Digital Video Measurements', 2001 Tektronix


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Created by: Kuan, Yeh Cheang. Copyright © 2002 YC Kuan. All rights reserved.