[argyllcms] Re: R: Re: Neutralize Grey Axis
- From: Gerhard Fuernkranz <nospam456@xxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 11 Jan 2011 21:00:56 +0100
Am 11.01.2011 15:45, schrieb Klaus Karcher:
> But as Gerhard mentioned and Graeme confirmed, changing the CIECAM
> adaptation chromaticity does not affect the gray balance of the
> perceptual intent essentially, so it might be better to replace it by
> -taa (Absolute appearance intent) as Graeme suggested. There's no
> gamut mapping in the absolute appearance intent however. If i got it
> right, the only way to get both gamut mapping and adaptation to a
> white point other than paper color in Argyll seems to be using device
> link profiles.
I tried it now with two steps, (1) applying the regular perceptual
profile, followed by (2) a device link containing the "-iaa"
transformation, i.e. this device link was created by
collink -v -K t -iaa -cpp -dpp -dw:0.3457:0.3585 printer.icc
printer.icc link-aa.icc
Now I can see the expected shift towards yellow in the soft proof :-)
cctiff -ir sRGB.icm -ip printer.icc link-aa.icc -ir printer.icc -ir
my-display.icc srgb-testimage.tif softproof1.tif
versus the regular perceptual one
cctiff -ir sRGB.icm -ip printer.icc -ir printer.icc -ir
my-display.icc srgb-testimage.tif softproof2.tif
Regard,
Gerhard
Other related posts:
