[argyllcms] Re: Issues with CMYK printer profile (Profile all wrong)
- From: Rodolfo Villanueva <rvillanut@xxxxxxxxx>
- To: argyllcms <argyllcms@xxxxxxxxxxxxx>
- Date: Tue, 25 Nov 2014 15:51:29 -0300
Okay, answers!
1. I'm using the softproof function from either photoshop or acrobat XI
(depends on the file i receive, PSD or PDF). Relative colorimetric, and
simulate ink. The room lighting are rather warm lights (4000k measures by
my CM), with around 150lux. I was considering a viewing booth, but the
issues is in "real life" it won't look like that, so i wanted to get a
match with my current room light than under specific one (but i'm
understanding that this won't be possible). In this subject, even though i
can choose standards like d50 or d65, if i can change the room lights, what
would be the settings you would recommend?
2. I understand the issue with the perfect match being impossible, but
since in my short experience right now i was getting VERY close matches if
i bumped the brightness of a picture 15 or 20 in photoshop, i thought there
was maybe a way (raising or lowering the brightness in the monitor doesn't
have the same effect as in the print)
Thanks for everything!
On Tue, Nov 25, 2014 at 3:32 PM, Ben Goren <ben@xxxxxxxxxxxxxxxx> wrote:
> On Nov 25, 2014, at 12:19 AM, Ivan Tsyba <ivantsyba@xxxxxxxxx> wrote:
>
> > 25 лист. 2014 04:25, користувач "Rodolfo Villanueva" <
> rvillanut@xxxxxxxxx> написав:
> > >
> > > Is there anything else i can play around to solve this?
> >
> > Use viewing booth
>
> Yes, exactly.
>
> Trying to get the screen to match the print is almost, but not quite, the
> perfect exercise in futility.
>
> Remember, the screen is producing its own tristimulus values from its red,
> green, and blue primaries. The print is a combination of the pigments in
> the paper and the spectral power distribution of the illuminant. And then
> you're adding in all the innumerable visual cues from backgrounds,
> reflections, and more...
>
> ...it _is_ possible to get a match, but it's very difficult and involves
> very careful control of the viewing environments. Neutral walls, neutral
> clothing, top-of-the-line viewing booth and profiles built from
> measurements of its illuminant, lots more to consider.
>
> Much less insane is to build standard display profiles with either D50 or
> D65 white points (your preference) and a good balance of both display and
> ambient luminance. Don't worry about perfect matches; just make it look
> "good enough" on screen. Then _independently_ judge the print, ideally in
> the light it'll be ultimately viewed in...but if it's for mixed use (such
> as a magazine or a book), then view it in as many different lighting
> environments as you can find, especially including both direct and indirect
> sunlight and el-cheapo household lights (fluorescent and incandescent both).
>
> If your ICC workflow is sound, it'll all "just work." It won't be perfect,
> but you'll quickly realize that you get far more variation just by taking
> the print from the printer to the conference room to the patio to the
> restroom than you'll ever observe in side-by-side comparisons with the
> monitor.
>
> Cheers,
>
> b&
>
--
R.
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