ITU RGB to YCrCb Standards
Nested conversion formulas
- Y = Cred R + Cgreen G + Cblue B
- Cr = (R - Y) / (2 - 2 Cred)
- Cb = (B - Y) / (2 - 2 Cblue)
- Y is lossless, but Cr/Cb is clipped to [-128,127]
- Assume that RGB has been gamma corrected
- Rec 601-1 used with TIFF and JPEG standards
- 8-bit format
- Y,R,G,B in [0,255]
- Cr in [-128,127]
- Cb in [-128,127]