whitewolf
05-20-04, 09:59 AM
What is the formula for calculating C(concentration) in CIEL*a*b*? I need this by 2:30 pm, and for some reason can't find it in my notes. HELP!
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View Full Version : Color and Light SOS whitewolf 05-20-04, 09:59 AM What is the formula for calculating C(concentration) in CIEL*a*b*? I need this by 2:30 pm, and for some reason can't find it in my notes. HELP! glaucon 05-20-04, 10:25 AM ?????? Wrong colour space dude. You mean CIE LCH space. Still... I can't recall.... Try google. :-) whitewolf 05-20-04, 11:53 AM No, CIE Lab is the right one. L is for value, a is for red-green, b is for yellow-blue. Hue (h) is the angle. C is.... uuuuh google my ass i have no time for google! Mommy! glaucon 05-21-04, 08:27 AM Negative. CIE Lab: Lightness ( - is darker, + is lighter), a ( - is greener, + is redder), b ( - is bluer, + is yellower). CIE LCH: Lightness ( from 0 to 255, higher the brighter), Chroma ( a radial measure of colour saturation), Hue ( a measure of colour hue moving through 360 °). colour spaces; check out section 5.5 (http://www.neuro.sfc.keio.ac.jp/~aly/polygon/info/color-space-faq.html) |