Digital color representation
Representation of color is messed up. Here are some articles about terminology. Merging Computing with Studio Video: Converting Between R’G’B’ and 4:2:2 / pdf by Charles Poynton Upon conversion from 8-bit R’G’B’ to 8-bit Y’CBCR, three-quarters of the available colors are lost. Upon 4:2:2 subsampling, half the color detail is discarded. YUV and luminance considered harmful / pdf by Charles Poynton It was standardized for NTSC in 1953, and remains standard for all contemporary video systems, to form luma, denoted Y’, as a weighted sum of nonlinear (gamma-corrected) R’G’B’ components....