[argyllcms] Re: Measuring and converting colors to sRGB
- From: Chris Lilley <chris@xxxxxx>
- To: Graeme Gill <graeme@xxxxxxxxxxxxx>
- Date: Mon, 13 Feb 2012 19:57:24 +0100
On Monday, February 13, 2012, 12:05:11 AM, Graeme wrote:
GG> Pascal de Bruijn wrote:
>> XYZ = 1.231303 1.000000 0.023474, x,y = 0.546086 0.443503
>> D50 L*a*b* = 100.000000 42.461990 138.939711
GG> This is a rather saturated color (139)
If I am reading the ICC specifications correctly, in both v.2 and v.4 a* and b*
are encoded in the range 127 .. -128. So an ICC profile can't even store that
color.
It will need to be gamut mapped (preferably) or will be clipped (changing the
hue) to bring it into the range of the encoding.
--
Chris Lilley Technical Director, Interaction Domain
W3C Graphics Activity Lead, Fonts Activity Lead
Co-Chair, W3C Hypertext CG
Member, CSS, WebFonts, SVG Working Groups
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