YCC color model
From The Glossary of Digital Photography
A color model developed by Kodak for its Photo CD system. In this color model, the RGB is translated into three components: luminance (Y), chrominance (C), and hue (C). See also Photo CD (PCD)

ONLINE GLOSSARY OF DIGITAL PHOTOGRAPY
A color model developed by Kodak for its Photo CD system. In this color model, the RGB is translated into three components: luminance (Y), chrominance (C), and hue (C). See also Photo CD (PCD)