Re: [WM]: CIELAB calculation

["Muneish Adya" <muneish.adya@gmail.com>]

are you lookin for luminence and chrominance values
if yes then

L = (0.257 * R) + (0.504 * G) + (0.098 * B) +
16  
 Cr = V = (0.439 * R) - (0.368 * G) - (0.071 * B) + 128  
 Cb = U = - (0.148 * R) - (
0.291 * G) + (0.439 * B) + 128  
for a 24 bit RGB representation......i read this in a site....don rmbr the site
though..

all d best
Muneish Adya
India

On 6/15/07, Mostafa mohsen <orange1704@hotmail.com> wrote:

Hi all watermarker

             I would like to ask about the equations that can convert RGB to CIELAB  and S-CIELAB. How can i convert from RGB to
CIELAB and vise versa??

Thanks and best regards
Mostafa


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