ما هو HSB و HLS?، Charles Poynton: "The usual formulation of HSB and HLS compute so-called "lightness" or "brightness" as (R+G+B)/3. This computation conflicts badly with the properties of colour vision, as it computes yellow to be about six times more intense than blue with the same "lightness" value (say L=50)." نسخة محفوظة 13 يوليو 2017 على موقع واي باك مشين.
“Brightness” in Federal Standard 1037C, the Federal Glossary of Telecommunication Terms (1996) نسخة محفوظة 24 ديسمبر 2016 على موقع واي باك مشين.
ما هو HSB و HLS?، Charles Poynton: "The usual formulation of HSB and HLS compute so-called "lightness" or "brightness" as (R+G+B)/3. This computation conflicts badly with the properties of colour vision, as it computes yellow to be about six times more intense than blue with the same "lightness" value (say L=50)." نسخة محفوظة 13 يوليو 2017 على موقع واي باك مشين.
