Hi Martin, all
I have done a seminar ("What is spectral colour data, and why should a PDF
developer care?") dealing with the handling of difference light source (and the
separation between:
- how to adapt the appearance of one colour to another viewing conditions and
- how do objects change their appearance when illuminated by different light
sources
You can find the video here:
http://www.fogra.org/en/fogra-publications/pub-talks/presentations-prepress/a-presentations-prepress.html
sincerely
Andy
On Oct 15, 2013, at 3:15 PM, Martin Florek wrote:
> Hello,
> I would like to convert L*a*b* values to RGB with an ICC profile. This
> part works OK and my colors look good when viewed on display with D50
> ambient light. When I am under other lights fluorescent/incandescent/...
> the color looks bad, of course. Is there a way I could adapt the color
> conversion to a different ambient light?
>
> Right now I create a transform from D50 Lab to a custom ICC profile. Can
> the adaptation to a different ambient light be done via chromatic
> adaptation, so I will make a multi-profile transformation like D50_Lab
> -> XYZ -> chromatic adaptation -> XYZ -> ICC profile -> RGB?
>
> I am not sure about the chromatic adaptation step. Currently I use only
> relative colorimetric intent.
>
> And one another thing is on my mind. Is it possible to display a color
> under one light so that it will look like displayed under a different
> light? For example, to display a color under a fluorescent light, so
> that it will look like under sunlight and vice versa? Thank you.
> Regards,
>
>
> Martin Florek
>
>
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