Method for encoding a digital color video signal by rate compression

摘要

A digital luminance signal and two digital color difference signals having high bit-rates and composed of words representing color picture elements are encoded into an encoded digital luminance signal and two encoded digital color difference signals having low bit-rates and composed of second words. The second words are selected in terms of real variation intervals of the two color differences having limits depending on a linear relation associating them with the luminance value.