Re: RGB to HSL conversion

Hi,

I am working on the RGB to HSL conversion to apply the tint. Could any one provide me the RGB to HSL ECMA conversion algorithm download link.

Thanks,
Sathish

Convert rgb into hsl  and then apply the following transformation on luminosity.

 l = (l * tint / 100.0f) + (1.0f - tint / 100.0f)


1) where l is luminosity.
2) tint=tint/1000.0;
Convert back to rgb.
 

Hi,


Thank you for the information. I referred Wiki pedia (http://en.wikipedia.org/wiki/HSL_and_HSV) and created the conversion algorithm. This algorithm works fine, I converted the RGB 31, 73, 125 value to HSL and again converted back to RGB returns the same. However I referred the ECMA and applied the below tint algorithm to HSL value and converted back returns the RBG value 142,180,227 instead of 141,180,226. Excel shows 141,180,226.


Tint Value:0.6
l*-=255;
l = l * (1.0 - dTint) + (255- 255* (1.0 - dTint)); where l is Luminance
l/=255

I referred both the algorithm in different location and I did some modification both in conversion and tint algorithm. Finally the resultant value is not correct so i need both the algorithm from ECMA itself. Could you please help on this?

Thanks,
Sathish