[argyllcms] Re: RGB printer profile - make black point blacker
- From: Anders Torger <torger@xxxxxxxxxxx>
- To: argyllcms@xxxxxxxxxxxxx
- Date: Tue, 17 Feb 2015 09:22:58 +0100
To clarify, what I'd like to do is to make something similar to the -k
parameter to dispcal, but for RGB printer profiles. That is reduce
black point hue correction to increase dmax.
Is this possible?
/Anders
On 02/16/2015 10:22:09 AM, Anders Torger wrote:
>
> When making inkjet printer RGB profiles I've noted that the black
> point
> may differ a little from the white point, ie they are not on the same
> neutral axis, which is not surprising. The black ink may not have the
> exact same hue as the paper white.
>
> It seems like when I generate a profile the black point is
> compensated,
> ie some colors are added in to move it in under the white point along
> a
> perfect neutral axis. Naturally this is the most correct way.
> However,
>
> maybe one would prefer to maximize blackness (and thus maximize dmax)
> rather than having a perfect neutral axis, that is black in a printed
> image would result with a R,G,B=0,0,0 output.
>
> Is it possible to feed some parameters to colprof to make this type
> of
>
> choice? It seems like you can do such things with a CMYK profile
> using
>
> the -k parameter, but not with RGB profiles?
>
> I don't know yet if making this type of optimization actually is a
> good
> idea or not, but it's something I'd like to test.
>
> /Anders
>
Other related posts:
