See fig. 2.1 here: http://disp.ee.ntu.edu.tw/meeting/%E7%B6%AD%E6%AF%85/An%20Introduction%20to%20Image%20Compression/An%20introduction%20to%20Image%20Compressi

See fig. 2.1 here: http://disp.ee.ntu.edu.tw/meeting/%E7%B6%AD%E6%AF%85/An%20Introduction%20to%20Image%20Compression/An%20introduction%20to%20Image%20Compression.pdf http://disp.ee.ntu.edu.tw/meeting/%E7%B6%AD%E6%AF%85/An%20In... and also read here: https://en.wikipedia.org/wiki/YUV https://en.wikipedia.org/wiki/YUV That is my quick guess on how to roughly derive the constants (because it is new, probably there are some fancy modifications tho :) )