[argyllcms] Re: targen for RGB printer



Any
comments on this?

I tried to search in the mailing list but I could not find any recommendations
or previous experiences.

I am assuming that the –G parameter provides better patches, but I am still
trying to understand how the -g and the –e parameters influence the final
profile. Have you got any experience of this? You just use or recommend to use
targen without –G and –e or –g?

Vittorio

From: vittoriovillani@xxxxxxxxxxx
To: argyllcms@xxxxxxxxxxxxx
Subject: [argyllcms] targen for RGB printer
Date: Tue, 7 Dec 2010 11:41:23 +0100








Hi all.
I would like to have some information about how to obtain the best from targen 
when you have to profile an RGB printer (-d2).
I tried some parameters but, in the final profile, I noticed no big differences 
using the same number of patches.

I'd like to have a total of 1500/1700 patches.
I would like to know:
1) Are you using the -G (Incremental Far Point Distribution from fast to good) 
parameter? Did you notice any differences between with or without -G? In my 
(small) experience -G is not giving me better results. Do you suggest to use it 
anyway?

2) How many white patch are you using? I tried to set -e at more than the 
default value (for example 8 instead of 4) but also in this case I could not 
notice differences in the final profile.
3) I was trying the -g parameter to set some (64) patches with same RGB values. 
Is this helpfull to improve the BW neutrality or not? Do you use this paramter 
when you are genereting a target that will be used to make a RGB printer 
profile?
Thanks.
Vittorio

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