Re: Question about input devices and Icc profiles...
Re: Question about input devices and Icc profiles...
- Subject: Re: Question about input devices and Icc profiles...
- From: "Xabier Urien" <email@hidden>
- Date: Wed, 14 Jul 2004 09:42:08 +0200
Hello...
>
> this
>
> means that all the spectral color are "scaneable"... them, for each =
>
No, that is not true. The target does not sample the whole CIE Lab space.
>
Rather, it samples the whole photographic process color space. Kodak or
Agfa
>
or Fuji papers are not able to reproduce the whole CIE Lab space but only
a
>
very small portion of it. The same as a press or an inkjet printer. Very
>
small fraction, indeed. Which makes some say that the CIE Lab encoding is
>
very inefficient.
Roger, I wanna to say, that in "theory" all colors are "scaneable" or
"capturable"... for instance, you can make your custom target with
ceramics,
and after read the "color" of each piece with the spectrolino you got the
reference file... after that take the photo, and PM makes the rest...
>
> color of the Lab space, you should to have an RGB value.... I dont care
=
>
> if you got the same RGB for a different Lab-s (you got 6451600 possible
=
>
> Lab values against 16581375 RGB values)....=20
>
NO, that is not how I understand this system works. See above.
I wanted to say, that in "theory" again, you can scan all of each Lab
color,
and for each Lab color you will have a RGB value of the device... Im
wrong???
>
Roger Breton | Laval, Canada | email@hidden
>
http://pages.infinit.net/graxx
Thank Roger ;o)
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