[argyllcms] Re: DeviceLink Profile refining
- From: "marcel nita" <marcel.nita@xxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Sun, 11 Feb 2007 16:55:29 +0200
On 2/11/07, Gerhard Fuernkranz <nospam456@xxxxxx> wrote:
ISOcoated.icc assumes a paper white of
$ argyll60x iccdump -t wtpt -v3 ISOcoated.icc
XYZArray:
No. elements = 1
0: 0.867828, 0.897430, 0.780685
[Lab 95.890080, 0.468833, -3.446925]
What is the measured color of your proofing paper?
Regards,
Gerhard
Hello,
First, thanks for all your answers.
I cannot tell you exactly the measured WP( I am at home ), but the dE is
somewhere around 0.6.
Actually, for CMYK%( 0, 0, 0, 0 ), an unrefined device link outputs CMYK%(
0, 0.4, 0.4, 0.0 ). This is the same result as the printer profile.
After the first step of refining, the patch starts turning to magenta: ( 0,
0.8, 0, 0 )
Again, there is a relatively small number of patches( when compared with the
target size ) which do not improve after the first step. That is why I asked
if you guys find correct the idea to ignore corrections that make the
abstract profile worse for some regions of the CLUT.
I forgot to mention, but it is very important to me to make the patches
improve or stabilize ( but not to get further apart from the reference )
right after the first step.
Best regards,
Marcel.
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